Step Drill-1
straight-fluted-2-steps-with-DXF:

Our „straight fluted cast iron & aluminum“ geometry is designed as a step drill with 2 form steps.
One step is designed as a „DXF form“ and the other as a normal „step relief“.

Use this tool to realize your own applications.
Ideal for know-how transfer.

The main application for these tools is in the automotive industry.
For example, cylinder blocks and heads, housings, steering knuckles and brake cylinders, as well as core hole drilling.
Depending on your requirements, we can also show you special methods for flute polishing.

Tool Features:

• 4 facet tip in standard design
• Can be manufactured completely without wheels
• Easy chip removal
• Excellent hole straightness and surface finish
• Multiple steps, chamfers, radii and forms can be added
• Easy regrinding
• Point composed of 2 reliefs and gash-out
• Gash-out, clearance angle and micro-geometry perfectly matched
• All operations optimized and coordinated down to the last detail

Easy to adapt to all possible dimensions.

You always have the choice: buy just the tool or, if required, additional training.

Step Drill-2
1-step-with-subland+DXF+FFA:

Our Step Drill-2 is a perfect programming example for anyone interested in tools with sub land and DXF form.

The form was intentionally not corrected with a CEC (cutting edge correction) in order to maintain the full sharpness of the helix angle.
To ensure that the shape remained dimensionally accurate, it was adapted with a flute form adaptation.
A 55° step angle with an inside chamfer and an outside radius was selected as the example shape.

One of the major advantages of the sub land design is that very short step lengths can be produced which can then be reground almost indefinitely.

The proven Peak Performance Steel Plus was selected as the base tip geometry

Tool features:

• The base geometry of the point is „Peak-Performance-Steel-Plus“.
• Can be produced completely without form wheels
• Easy chip removal
• Very short steps that can be regrinded almost endlessly
• Chamfers, radii and forms can be added
• Easy regrinding
• Point composed of 2 reliefs and S-gash out
• Gash-out, clearance angle and micro-geometry perfectly coordinated
• All operations optimized and coordinated down to the last detail

Easily adaptable to all possible dimensions.

You always have the choice: buy just the tool or, if required, additional training.

Step Drill-3
1-step-with-subland+cam relief+CEC:

Our Step Drill-3 is a perfect programming example for those interested in tools with a sub
land, step face cam and CEC (cutting edge correction).

In this program, the step angle is generated with a cam relief.
This is then intentionally „corrected“ to a 20° shear angle with a CEC. This not only ensures dimensional accuracy, but also adapts the cutting geometry to the material.

One of the major advantages of sub-lands is that very short step lengths can be produced, which can then be reground almost indefinitely.

We have chosen the „Peak-Performance-Steel-Plus“ as the base geometry for the tip.

Tool features:

• The base geometry of the point is „Peak-Performance-Steel-Plus“.
• Can be produced completely without form wheels
• Easy chip removal, the CEC can be adapted to all materials
• Very short steps that can be regrinded almost endlessly
• Easy regrinding
• Point consisting of 2 reliefs and S-gash out
• Gash-out, clearance angle and micro-geometry perfectly coordinated
• All operations optimized and coordinated down to the last detail

Easily adaptable to all possible dimensions.

You always have the choice: buy just the tool or, if required, additional training.

Step Drill-4
1-step with cam relief: 

Our Step Drill-4 is a perfect programming example for anyone interested in a step drill with a cam relief as a step.

In this program, the step angle is generated with a cam relief.
The step was intentionally not corrected with a CEC (cutting edge correction) in order to maintain the full sharpness of the helix angle.

We have chosen the proven „Peak Performance General Purpose Steel“ as the basic geometry of the tip.

Tool Features:

• The basic geometry of the tip is „Peak-Performance-General-Purpose-Steel“.
• Can be produced completely without form wheels
• Easy chip removal
• Easy regrinding
• Tip consisting of spiral point and S-gash
• Gash-out, clearance angle and micro-geometry perfectly matched
• All operations optimized and coordinated down to the last detail

Easily adaptable to all possible dimensions.
A really good all-rounder that works very well.

You always have the choice: buy just the tool or, if required, additional training.

Step Drill-5
1-Step with step relief + FFA:

Our Step Drill-5 is a perfect programming example for those who are interested in a step drill with
step relief and FFA (Flute Form Adaptation).

In this program, the step angle is produced with a step relief.
A relief is sharper than a cam, but not quite as stable.

The step is deliberately not corrected with a CEC (cutting edge correction) in order to maintain the full sharpness of the helix angle.
To achieve perfect dimensional accuracy, the step was corrected with the FFA.

We chose „peak performance general purpose steel“ as the basic geometry of the tip.

Tool features:

• The basic geometry of the tip is „peak performance general purpose steel“.
• Can be produced completely without form wheels
• Easy chip removal
• Provides a sharp cutting edge due to its relief type
• Easy to regrind
• Tip composed of spiral point and S-gash
• Gash-out, clearance angle and micro-geometry perfectly matched
• All operations optimized and coordinated down to the last detail

Easily adaptable to all possible dimensions.
A really good all-rounder that works very well.

You always have the choice: buy just the tool or, if required, additional training.

Step Drill-6
1-step-with-cam-relief+CEC:

Our Step Drill-6 is a perfect programming example for those interested in a step drill with cam relief + CEC.
It is particularly suitable for materials that are difficult to machine.

In this program, the step angle is created with a cam relief.
This is then deliberately „corrected“ to a 15° shear angle with a CEC. This not only ensures dimensional accuracy, but also adapts the cutting-edge geometry to the material.

The proven „Peak Performance Stainless Plus“ was chosen as the basic geometry of the tip.

Tool features:

• Basic tip geometry is „Peak Performance Stainless Plus“.
• Can be produced completely without form wheels
• Easy chip removal
• Easy regrinding
• Tip consists of 2 reliefs and an S-gash out
• Gash-out, clearance angle and micro-geometry perfectly coordinated
• All operations optimized and coordinated down to the last detail

Quick and easy adaptation to all possible dimensions
Step drill for difficult to machine materials.

You always have the choice: buy just the tool or, if required, additional training.

Step Drill-7
1-Step with Step Relief + CEC:

Our Step Drill-7 is a perfect programming example for those interested in a step drill
with step relief + CEC.
It is particularly suitable for materials that are difficult to machine.

The step angle in this program is created with a step relief.
A relief is sharper than a cam grind, but not quite as stable.

This was then deliberately „corrected“ with a CEC to an shear angle of 15°. This not only ensures dimensional accuracy, but also matches the edge geometry to the material.

The proven „Peak Performance Stainless Plus“ was chosen as the basic geometry of the tip.

Tool features:

• The basic geometry of the tip is „Peak Performance Stainless Plus“.
• Can be produced completely without form wheels
• Easy chip removal
• Easy regrinding
• Tip composed of 2 reliefs and S-gash out
• Gash-out, clearance angle and micro-geometry perfectly coordinated
• All operations optimized and coordinated down to the last detail

Quick and easy adaptation to all possible dimensions
Step drill for difficult to machine materials.

You always have the choice: buy just the tool or, if required, additional training.

Step Drill-8
1-step-with-DXF+CEC:

Our Step Drill-8 is a perfect programming example for anyone interested in a step drill with DXF form and CEC.
It is especially useful for machining difficult-to-machine materials.

In this program, the step angle is generated with a DXF form that has also been corrected with a CEC.
This not only ensures dimensional accuracy, but also adapts the cutting-edge geometry to the material. The shear angle in this program is 15°.

The dxf form is a example form with a radius on the inside and a flat chamfer on the outside.

We have chosen the proven „Peak Performance Stainless Plus“ as the basic tip geometry.

Tool Features:

• The basic tip geometry is „Peak Performance Stainless Plus“.
• Can be produced completely without form wheels
• Easy chip removal
• Chamfers, radii and forms can be added
• Easy regrinding
• Tip composed of 2 reliefs and S-gash out
• Gash-out, clearance angle and microgeometry perfectly matched
• All operations optimized and coordinated down to the last detail

Quick and easy adaptation to all possible dimensions
Step drill for difficult to machine materials.

You always have the choice: buy just the tool or, if required, additional training.

Step Drill-9
1-step-with-DXF+FFA:

Our Step Drill-9 is a perfect programming example for anyone interested in a step drill with DXF form and FFA.
It is particularly suitable for materials that are difficult to machine.

The step has deliberately not been corrected with a CEC (cutting edge correction) in order to maintain the full sharpness of the helix angle.
For perfect dimensional accuracy, the step has been adapted with FFA (flute form adaptation).

The DXF form is a sample form with a radius on the inside and a flat chamfer on the outside.

The proven „Peak Performance Stainless Plus“ was selected as the basic tip geometry.

Tool Features:

• The basic tip geometry is „Peak Performance Stainless Plus“.
• Can be produced completely without form wheels
• Easy chip removal
• Chamfers, radii and shapes can be added
• Easy regrinding
• Tip consists of 2 reliefs and S-gash out
• Gash-out, clearance angle and micro-geometry perfectly coordinated
• All operations optimized and coordinated down to the last detail

Quick and easy adaptation to all possible dimensions
Step drill for difficult to machine materials.

You always have the choice: buy just the tool or, if required, additional training.

Step Drill-10
3-step with cam relief:

Our Step Drill-10 is a perfect programming example for anyone interested in a multi-step drill.
The proven cam relief is used as the step type.

Multi-step drills can often be difficult to program. Our example shows how to do it.
If you study it carefully, you can program multi-step drills with ease.

We have chosen the proven „Peak Performance Stainless Plus“ as the basic tip geometry.

Tool Features:

• The basic tip geometry is „Peak Performance Stainless Plus“.
• Can be produced completely without form wheels
• Easy chip removal
• Chamfers, radii and shapes can be added
• Easy regrinding
• Tip consists of 2 reliefs and S-gash out
• Gash-out, clearance angle and micro-geometry perfectly coordinated
• All operations optimized and coordinated down to the last detail

Easily adaptable to all possible dimensions.
For maximum success, we recommend step drill training.

You always have the choice: buy just the tool or, if required, additional training.

Step Drill-11
3-Steps with DXF+CEC:

Our Step Drill-11 is a perfect programming example for anyone interested in a multi-step drill
with DXF form and CEC.
This tool has a DXF form on all steps that has also been corrected with a CEC.
This not only ensures dimensional accuracy, but also adapts the cutting geometry to the material.

The shear angle for this program is 15°.

Multi-step drills are often difficult to produce. Our example shows how it can be done.
If you study it carefully, you can safely program step drills with multiple steps.

We have chosen „Peak Performance Stainless Plus“ as the basic tip geometry.

Tool Features:

• The basic tip geometry is „Peak Performance Stainless Plus“.
• Can be produced completely without form wheels
• Easy chip removal
• Chamfers, radii and forms can be added
• Easy regrinding
• Tip composed of 2 reliefs and S-gash out
• Gash-out, clearance angle and micro-geometry perfectly coordinated
• All operations optimized and coordinated down to the last detail

Easy adjustment to all possible dimensions.
For maximum success, we recommend training for step drills.

You always have the choice: buy just the tool or, if required, additional training.

High Feed End Mills:

High feed end mills have become an integral part of the industry.
All the major manufacturers serve this market with their own individual solutions.

We often hear:

We would like to grind them, but it is not possible with Numroto.
However, just as with barrel cutters, this is not really a problem for Numroto.

We have therefore chosen an example that you can use to create your own product line.
Variation of the number of teeth, pitch, normal or radial relief as well as special face shapes, everything is possible.

Tool features:

• Internal cooling tool design for circular plunging
• Ultra-stable core design for maximum rigidity
• Fully corrected corner radius for unmatched edge strength
• Optimal surface finish on the part due to special face geometry

You always have the choice: Buy only the tool or, if required, additional training.
— Training only useful for experienced users —

High efficiency barrel cutter:

High process reliability combined with efficiency and precision.

-The Barrel Cutter for success

We often hear the following:

— Yes, it’s a pity that we can’t program and grind barrel tools with Numroto. —
But that’s not true!
If you are familiar with the form cutter package, you can indeed produce such tools.

Our example tool shows how it can be done.
Countless variations are possible; the only limit is your own imagination.

Tool Features:

• 6 cutting edges for enormous tool life and process reliability
• Constant helix angle provides ideal cutting conditions throughout the tool
• Ultra-stable core design for maximum milling stability
• Large line jumps result in short machining times
• Improved surface finish

You always have the choice: Buy only the tool or, if required, additional training.
— Training only useful for experienced users —

6-flute up-and-down/compression router:

The up-and-down compression router is used primarily for composite materials.
It primarily prevents delamination and eliminates the need for post-processing.

It is also commonly used for wood or plastic.
If you rarely make up-and-down routers, you may want to save yourself the new program package.

We will show you how to program such tools in the standard end mill package.

If you are not afraid to put in some effort, you can program tools that are currently not even possible in the official Up & Down package.

Tool features:

• 6-flute Up&Down cutter with full overlap
• All operations individually adjustable
• High performance roughing profile on all teeth
• Roughing profile can be easily switched off to get a finishing tool
• Good programming example for all other tools in the Up&Down family

You always have the choice: Buy only the tool or, if required, additional training.

Special geometry end mill:

We get asked all the time for unusual geometries like this one.
What looks complicated and „fancy“ at first glance is actually not that big a deal if you
know how to do it.

You’ll be surprised how easy it is to program these tools if you keep a few basics in mind.

Tool Features:

• Unequal flute spacing + odd helix angle
• Wavy 1st radial relief similar to the „Hamon“ of the Katana sword
• New chip pocket design
• Special design to minimize vibration, improve chip evacuation and suppress long chips
• Performance Plus even in the most difficult applications

Great tool for knowledge transfer.
Easy to modify and adapt to your individual needs

In this example, no special operations are required.
— All operations are „standard“ operations from the „end mill package“. —

You always have the choice: Buy only the tool or, if required, additional training.

Multi-fluted sub land step drill: 

The winner in cost per part.
Means unmatched value for the customer.

Tool features:

• Combine different tools into one and save your customer tool changes.
• Perfect tolerances in a single hole. —Everything fits together perfectly.
• Angles, radii, dxf shapes or reaming edges – even overhanging contours for O-rings are possible on the tool.
• Multiple and easy resharpening is possible thanks to the sub land running all the way to the back.
• With short step lengths, such a tool would have to be scrapped after only 1 or 2 regrinds.
• Cylindrical grinding of the blank is not absolutely necessary because the diameter is generated directly on the CNC.
• Pre-roughing can be done, for example, by plunge infeed deep cut.

Secure your training today and gain the knowledge you need to impress your customers with these fantastic tools in the future.

You always have the choice: buy just the tool or, if required, additional training.

Step drill with Back Chamfer function:

Machining the exit of the hole can cause major problems with some components.
If high demands are made and a burr-free surface is absolutely essential, the
question of economical machining arises.

With a Back Chamfer function, the hole can be drilled in a single pass and the entry and exit of the hole can be perfectly deburred.
Cleverly and gradually reground, these tools can also be used multiple times in a reliable process.

Tool features:

• Sophisticated design with standard operations and standard wheels
• Tool can be manufactured from a solid blank thanks to plunge infeed deep cut grinding
• Ideal programming example for all possible Back Chamfer tools
• Design with 4 guiding margins and optimized drill tip for perfect hole quality

You always have the choice: Buy only the tool or, if required, additional training.

Elite performance
Steel Roughing Geometry:

If you want to rough as much as possible as fast as possible, this is the tool for you.
Our 16mm steel roughing geometry is ideally suited and an absolute top performer.

The calculated tool geometry has been thought through down to the last detail, and with 6 cutting edges it gives you the maximum performance you are looking for.

In addition, the end face is designed to easily support all plunge strategies. Whether it be ramping, pendulum, helical plunging or even drilling/piercing.

Tool Features:

• Full 6 cutting edges with adapted high performance roughing profile
• Near-perfect overlap with a surface roughness of less than 20µ produces a near-smooth workpiece surface
• An unequal flute spacing in addition to the rigidly designed core diameter ensures extremely smooth running even under the toughest conditions
• Its 45° helix ensures a smooth cut even in difficult-to-cut materials.
• At the same time, it is virtually indestructible and achieves enormous tool life.
• A particular advantage is that we can guarantee regrindability.
• This greatly reduces tooling costs for your customers, which is a great selling point.

Easy to modify and adapt to your individual needs.
If you need help regrinding these great tools, you can always ask us for a workshop.

You always have the choice: buy just the tool or, if required, additional training.

Elite Performance
TPC + finishing geometry:

7 fluted Elite Performance end mill for machining high-alloy steels and special alloys.

Experts agree that the harder the material, the more productive it is to switch to TPC milling.
Our tool is tailor-made for such TPC (trochoidal milling) applications.

These are the benefits that can be achieved with this tool:
Very high metal removal rates, large cutting depths, low tool wear, lowest cutting forces, high process reliability.

Tool features:

• 7 cutting edges with specially adapted geometry for maximum tool life
• Ultra-stable core for maximum stability and rigidity
• Unequal flute spacing and variable helix eliminate vibration and oscillation. This results in unsurpassed smooth running.
• Variable 55° helix for smooth cutting and reduced power consumption
• Adapted face plunging geometry with central coolant outlet allows helical plunging
• Our signature polished chipbreakers produce short chips. These can be removed for perfect finishing geometry.

Easily modifiable and adaptable to your individual needs.

You always have the choice: buy just the tool or, if required, additional training.

Peak Performance
Titanium HPC Geometry:

Machining titanium is difficult for well-known reasons.

It is therefore even more important that the tool design is prepared for these difficult operating conditions.
Our titanium HPC end mills are specially designed for this.
We offer you the perfect balance of a sharp yet stable cutting edge paired with a robust core and technology that suppresses any oscillation and vibration.

For the final „touch“, we recommend a cutting-edge treatment in the micron range, which can be done directly on your CNC.
Ask specifically for „SKP on the CNC machine“ and we will implement this process with you.

Tool features:

• 4 sharp yet stable cutting edges with specially adapted titanium geometry
• Highly polished surface prevents material sticking and ensures optimum chip formation
• Unequal flute spacing + variable helix suppresses any vibration and oscillation, ensuring excellent running smoothness.
• Increasing core diameter provides both stability and chip space
• The end face has been designed so that it will not break even during helical entry or ramping.

           This has been achieved by optimized radii in the gash, as well as an adapted widening and a stabilized corner chamfer.

An ideal tool you can rely on.
You always have the choice: buy just the tool or, if required, additional training.

Elite Performance
Hard Geometry HRC Max:

Hard machining plays an important role in die and mold making. It is also seen as a major challenge.

We have further improved the existing tool geometries and offer you an optimum of geometry and design.

We also recommend cutting edge treatment in the µ-range, which can be done directly on your CNC.
Just ask us about „SKP on the CNC“.

Tool features:

• Highly twisted 6 cutting edges with HRC-Max geometry ensure short cutting contact, low temperatures, stable cutting edges and µ-precise tolerances.
• Maximum core diameter for superior rigidity
• Flute spacing and helix angle designed for hard machining.
• Slight asymmetry provides optimum tool life while damping vibration and oscillation
• Stable yet open face with additional small corner chamfer

You can easily adapt our HRC Max. hard geometry to less hard materials by adjusting the rake angle.

You always have the choice: buy just the tool or, if required, additional training.

Peak performance
General purpose steel:

One tool for a variety of applications in steel, cast iron and stainless steel.

If you are looking for an end mill that just does the job, you will be pleased with our all-purpose geometry.
It is an indestructible companion that will be met with great enthusiasm.

Tool Features:

• Proven 4 cutting edges with adapted all-round geometry
• Innovative core design for both chip space and stability
• Asymmetrical pitch and helix angle to reduce vibration and oscillation
• Stable yet open face design that supports all common milling strategies
• Easily adaptable and modifiable for other materials

A tool that does what it is supposed to do, which is work.
Best produced within the automatic loader and in high volumes. We can show you how to make the necessary optimizations.

You always have the choice: buy just the tool or, if required, additional training.

Peak performance
Aluminum HPC geometry:

Similar to our popular general purpose steel tool.
The only difference is that we have pursued the goal of offering a high-performance aluminum geometry.

You will not be disappointed and can look forward to maximum feed rates and very smooth operation.
Also suitable for machining PMMA (Acrylic, Plexiglas) as well as PEEK, Honeycomb Sandwich and Cu.

Tool features:

• Proven 4 cutting edges with adapted sharp aluminum geometry
• Innovative core design for both chip space and stability
• Unequal flute spacing and variable helix angle for vibration damping and absorption
• Specially designed tip geometry for cutting aluminum. Supports all common plunge milling strategies.
• Highly polished flutes to prevent chip jams and sticking.

A tool that does what it is supposed to do, which is work.
Best produced with an automatic loader and in large quantities. We can show you how to make the necessary improvements.

You always have the choice: buy just the tool or, if required, additional training.

Elite Performance
Aluminum roughing geometry:

Part of our high volume 16mm roughing tool family.
Our Elite Performance aluminum roughing geometry is used when only one thing matters: cutting as much material as possible in the shortest amount of time.

Ultra-stable and sharp at the same time.
Thanks to the polished trapezoidal tooth we use, this tool produces a full 100% overlap. So you don’t have to worry about bad surfaces.

Plus, there’s a true radial relief surface that stabilizes the cut and prevents it from pulling into the material.

Tool Features:

• 3 cutting edges with polished trapezoidal teeth produce full 100% overlap
• Perfect compromise between stability and chip space
• Variable angles on all 3 cutting edges for improved vibration damping and absorption
• Specially adapted tip geometry for cutting aluminum. Supports all common plunge milling strategies
• Central coolant exit for optimum chip evacuation
• Highly polished flutes to prevent chip build-up and jamming
• Easily customizable by you.
• No complicated special operations or form wheels required

Tool can be resharpened multiple times for a real cost per part advantage.
If you have any problems, we will be happy to help you.

You always have the choice: buy just the tool or, if required, additional training.

Elite Performance
Aluminum 3D geometry:

On popular demand, we now offer 2 tools that meet the requirements of a modern pocket end mill.

We looked around the market and finally programmed the „Master of Pockets“.
This is a version with special angles and geometries for machining aluminum.

Since this tool cannot be ground with our conventional end mill package, we had to switch to the form cutter package.
But don’t worry, you’ll quickly lose your fear of this programming once you see how we designed this tool.

Tool Features:

• 4 cutting edges with special plunge geometry. Near drill-like feed rates
• No compromise on cutting performance. Full performance without ifs and buts thanks to the use of the micro-geometry-
• Vibration and damping technology integrated as a standard feature
• Specially adapted tip design with center point + widened center point
• Highly polished flutes to prevent chip jams and sticking
• Amazingly easy to program. If you are familiar with form cutters in general, you are sure to get this program running successfully.
• Chip breaker for even more process reliability + reduced power consumption

Of course, you can easily customize this tool by varying the cutting length or corner radius.
This allows you to offer a tool that meets the customer’s needs by 100%.

You always have the choice: buy just the tool or, if required, additional training.

Elite Performance
Steel 3D geometry:

On popular demand, we now offer 2 tools that meet the requirements of a modern pocket end mill.

We looked around the market and finally programmed the „Master of Pockets“.
This is a version with special angles and geometries for machining steel.

Since this tool cannot be ground with our conventional end mill package, we had to switch to the form cutter package.
But don’t worry, you’ll quickly lose your fear of this programming once you see how we designed this tool.

Tool Features:

• 4 cutting edges with special plunge geometry. Near drill-like feed rates
• No compromise on cutting performance. Full performance without ifs and buts thanks to the use of the micro-geometry-steel + reinforced core.
• Vibration and damping technology integrated as a standard feature
• Specially adapted tip design with center point + widened center point
• Highly polished flutes to prevent chip jams and sticking
• Amazingly easy to program. If you are familiar with form cutters in general, you are sure to get this program running successfully.
• Chip breaker for even more process reliability + reduced power consumption

Of course, you can easily customize this tool by varying the cutting length or corner radius.
This allows you to offer a tool that meets the customer’s needs by 100%.

You always have the choice: buy just the tool or, if required, additional training.

Special O-Ring Step Drill:

A special type of step drill with an overhanging contour.
These tools can be made using a special technique and a special wheel.

Our example combines the O-ring function with that of the sub land step drill.
Like no other tool, it shows what is possible in the field of step drills.

Tool features:

• Tool capable of producing recesses of unmatched quality
• The proven principle of the Sub land with all its advantages
• Our example shows the best way to program such a tool
• Point with optimized radius pointing

We are also happy to discuss variations or other requirements.

You always have the choice: buy just the tool or, if required, additional training.

Mach 3 Special

There are several advantages to designing a tool with a special flute shape/wheel.
With a specially calculated flute shape/wheel, it is possible to produce cross sectional profiles that
cannot be realized with normal wheels.

Another important advantage is that special geometries can be developed and patented.
– A new and unique material-specific flute shape would therefore be an outstanding feature. With all the advantages

– It is possible to develop geometries that are very material specific and perform significantly better than competing tools.

Tool features:

• Special flute profile with variable rake angle. Sharp outside + chipform optimized inside
• Ideal geometry for high speed machining even on difficult surfaces due to integrated centering point
• 3 flute design for maximum feed rates and near perfect hole roundness
• The narrow core profile forces the chip to curl. Such a flute profile prevents long chips and poor surface finishes on the hole wall.

• You can either purchase the finished example tool from us or attend a workshop to learn how to calculate and use flute shapes yourself.

You always have the choice: buy just the tool or, if required, additional training.

High Performance Thread Mill M12:

Many companies are still afraid of thread mills. High investment costs and a lack of know-how are
the reasons why many prefer to keep their hands off an entire family of tools.

However, the profit margins for threading tools in particular are high and the competition is manageable.

Numroto offers a specific additional program for threading tools that is not officially advertised, but is very powerful.
We can calculate and simulate virtually all types of threads and simulate them entirely in 3D.
From very simple thread mills to drill thread mills or circular thread mills, everything is possible.

As an example, we have created a tool for you that includes some of the most advanced features.

Tool Features:

• Corrected „straight“ flute shape for uniform wear along the entire profile
• High helix for machining difficult-to-machine materials
• Anti-vibration technology“, also known from high performance end mills
• All calculated forms used for fluting and for producing the threads are included

If you are planning to manufacture your own threading tools in the future, we will be happy to help you with the implementation.
Of course, we will also discuss the necessary grinding wheels and dressing technology.

Info:

Implementation requires precise planning and close cooperation.

• Programming and thread calculation will be discussed in detail.
• In the second part, we will deal with the implementation and planning on the machine.
• This is a long term project that requires close support from us.

However, you always have the choice: Buy only the tool or, if required, additional training.

— Only suitable for very experienced programmers or machine operators. —

Face Form Drill aka „Trepan Tool“

These are highly effective drilling tools that create recesses such as O-rings or
sealing surfaces that are difficult or much more inefficient to produce using other manufacturing methods.

They are available in a very simple form, straight fluted with only one shape (function).
Or highly complex as part of multi-fluted step drills.

We have chosen a tool from the valve industry as an example.
Of course, many variations are possible.

Please contact us for individual training. We will be happy to show you the programming and all the tricks you can use to make these tools as easy as possible.

Tool Features:

• Demonstrates the production of overhanging shapes
• Complex part shapes with unmatched accuracy
• Completely repeatable and process-safe
• Sophisticated programming down to the last detail

You always have the choice: Buy just the tool or, if required, additional training.

Plotter Knives

Plotter knives come in many different designs.

Are you looking for a way to make these tools?
We have created three examples with different geometries.

These include Plotter Knife B with an asymmetrical cutting geometry.

But be careful, the correct clamping is just as important as the program. Your trusted machine manufacturer can help you here so that you can also produce these great tools using the automatic loader.

Tool features:

• Optimized programming
• 3 programs with different functions and programming options
• Easy to use thanks to DXF format. Forget complex manual grinding paths with yesterday’s programming
• Simple modifications and adjustment options

You always have the choice: buy only the tool or, if required, additional training.

Core Hole Drill:

Do you have a customer request and need a sample program?
We have programmed a core drill that can serve as a perfect template.

Trust our proven quality and save yourself a lot of trial and error.
Quick to obtain, just as quick to understand and modify.

Tool features:

• Easy programming of all operations
• Proven pre and finish cutter geometry

Of course, we can also provide you with training on the programming and its special features.

You always have the choice: Buy only the tool or, if required, additional training.

Step drill with Back Chamfer function:

Machining the exit of the hole can cause major problems with some components.
If high demands are made and a burr-free surface is absolutely essential, the
question of economical machining arises.

With a Back Chamfer function, the hole can be drilled in a single pass and the entry and exit of the hole can be perfectly deburred.
Cleverly and gradually reground, these tools can also be used multiple times in a reliable process.

Tool features:

• Sophisticated design with standard operations and standard wheels
• Tool can be manufactured from a solid blank thanks to plunge infeed deep cut grinding
• Ideal programming example for all possible Back Chamfer tools
• Design with 4 guiding margins and optimized drill tip for perfect hole quality

You always have the choice: Buy only the tool or, if required, additional training.

Roughing/Finishing End Mills:

A roughing / finishing end mill with separated cutting edges.
3 flutes with roughing profile and 3 flutes are smooth.

With an innovative roughing/finishing design plus adapted rake angles, the machining of difficult-to-cut materials is no longer a problem.

A classic and a „must have“ in any good tool selection.
Also, a perfect tool for further optimization and adapted variants such as unequal pitch or different helix angles.

Tool features:

• Roughing/finishing geometry for difficult-to-machine materials
• High running smoothness and stability due to double radial relief
• 100° chipbreaker angle provides a stable roughing profile and prevents edge build-up
• Rigid tool core provides maximum stability, reduces vibration and improves surface finish
• The range also includes a plunge cut at the end of the cutting edge, produced with our optimized „plunge infeed deep cut grinding“ process.

You always have the choice: Buy only the tool or, if required, additional training.

Staggered T-slot cutter:

Our example tool is a high-end application for the air defense industry.
Special attention was paid to form tolerance and staggered teeth.

The staggered teeth ensure that the forces are „neutralized“ in a component that is sensitive to vibration.

The staggered teeth were produced using a special time-saving production method instead of the usual flute grinding.

Tool features:

• Staggered teeth for cutting force reduction and vibration dampening
• Form grinding uses a „full radius wheel“ process to minimize path errors
• Great programming example, designed and optimized to the very last detail

Interested in all types of T-slot cutters? Feel free to contact us!
We can address all aspects of your production needs.

You always have the choice: Buy only the tool or, if required, additional training.

High Feed End Mills:

High feed end mills have become an integral part of the industry.
All the major manufacturers serve this market with their own individual solutions.

We often hear:

We would like to grind them, but it is not possible with Numroto.
However, just as with barrel cutters, this is not really a problem for Numroto.

We have therefore chosen an example that you can use to create your own product line.
Variation of the number of teeth, pitch, normal or radial relief as well as special face shapes, everything is possible.

Tool features:

• Internal cooling tool design for circular plunging
• Ultra-stable core design for maximum rigidity
• Fully corrected corner radius for unmatched edge strength
• Optimal surface finish on the part due to special face geometry

You always have the choice: Buy only the tool or, if required, additional training.
— Training only useful for experienced users —

High efficiency barrel cutter:

High process reliability combined with efficiency and precision.

-The Barrel Cutter for success

We often hear the following:

— Yes, it’s a pity that we can’t program and grind barrel tools with Numroto. —
But that’s not true!
If you are familiar with the form cutter package, you can indeed produce such tools.

Our example tool shows how it can be done.
Countless variations are possible; the only limit is your own imagination.

Tool Features:

• 6 cutting edges for enormous tool life and process reliability
• Constant helix angle provides ideal cutting conditions throughout the tool
• Ultra-stable core design for maximum milling stability
• Large line jumps result in short machining times
• Improved surface finish

You always have the choice: Buy only the tool or, if required, additional training.
— Training only useful for experienced users —

180° Flat Bottom
Step Drill:

The flat-bottom geometry is alwaysrequested when the customer needs a completely straight (flat) blind hole.

This is exactly what you can achieve with this tool.

Tool Features:

• Perfectly flat bottom hole right to the center
• Adaptable to a wide range of materials thanks to special gash-out
• No more deviations as with many other manufacturers (true flat bottom)
• Maintains the advantages of a spiral drill
• No pre-drilling required, customer can work directly into full material (one-shot solution)
• Simultaneous countersinking of the hole due to countersinking step
• Of course, other step transitions are possible, such as radii or special shapes.

We will be happy to explain the programming in detail.
— Can also be used for 3-flute tools —.

You always have the choice: Buy only the tool or, if required, additional training.