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HEULE Chamfering Tools

Economical front and back chamfering of bores in a single pass.

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With HEULE chamfering tools, you can remove burrs from bore edges and create a chamfer at the same time. Both sides are machined in a single operation – without having to turn the workpiece. This not only optimises your process times but also reduces unit costs.

SNAP

Forwards and backwards chamfering in one single pass

SNAP

DEFA

Forwards and backwards chamfering of interrupted bores – even with large burrs – in one single pass

DEFA

GH-K countersinks metal bores with process reliability; replaceable carbide blades deliver precise chamfers in the CNC process.

GH-K

Countersinking of metal from Ø3 mm to Ø45 mm

GH-K

Solutions for your specific application

Your application is not shown? We would be pleased to offer advice and develop a solution tailored to your needs.

Custom development Enquiry form

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The HEULE chamfering tools remove the burr from the front and back bore edges and produce a chamfer. They are renowned for their exceptional cost effectiveness.

Machine operator at the control of a CNC machine for setting the machining process

Optimised process times

Double-sided chamfering of the bore in a single pass
No need to rotate the workpiece or stop the spindle
Standard range
Maximum optimisation of process times with custom developments

Process-reliable chamfering

Controlled chamfering
No damage to the surface when passing through the bore

Safe to use

Ready to use with no pre-sets
Simple process steps description and programming
Simple tool concept and safe handling
Simple blade change in the machine

HEULE SNAP Tool for front and back chamfering of bores in one pass

Great variety

Chamfering tools can be used from a bore diameter of 2.0 mm
Cassette solutions for large dimensions

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Wide range of uses

Suitable for reamed and finished bores
Especially suitable for large batch sizes
Carbide blade with material-specific coating
Can be used for all materials – from aluminium to nickel alloys

Improving process reliability

Better quality through consistent chamfering results thanks to a precisely defined cutting edge

Cost savings

Low quality control costs, reduced logistical effort, lower capital expenditure

Reduced risk of errors

Elimination of manual interventions such as re-clamping the workpiece

Lead time gain

An in-house automated process and the elimination of externally carried out chamfering operations

Lower machine utilisation

More efficient chamfering frees up machine capacity and reduces the need for investment

Satisfied staff

Simple and safe handling of tools during maintenance, commissioning and operation

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Overview deburring methods

DEFA creates front and back chamfers on a through-hole in the cut

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Steering knuckle | Increased efficiency thanks to the HEULE chamfering solution.

More about the steering knuckle All sample applications

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Back implant | PEEK is a demanding material that is used in medical technology. HEULE offers the customer the optimal solution for chamfering bores

More about the back implant All sample applications

We are the partner working shoulder to shoulder with our customers. As an experienced problem solver, HEULE offers a proven standard tool range as well as custom developments with Swiss precision. Always in focus: reducing process times and unit costs for our customers.

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HEULE employees working on precision tool manufacturing

More about HEULE

A chamfer is a bevelled surface on the edge of a bore. It serves not only to ensure health and safety at work, but also to protect the workpiece. This is because chamfered edges are less susceptible to damage from impacts.

The term ‘chamfering’ therefore refers to the application of these chamfers to a metal workpiece. Particular mention should be made of chamfers on the inner or back sides of bores, which present challenges for manufacturing companies. With HEULE’s spring-loaded chamfering tools, these can be created from the front without the workpiece needing to be turned. This results in significant savings in process times and, consequently, in process costs.

The function principle of HEULE’s chamfering tools (e.g. SNAP, DEFA) is based on an integrated spring. As it enters the bore, the blade machines the front edge of the bore. Once the chamfer has been completed, the blade retracts into the tool body and glides through the bore without damaging the bore wall. On the return stroke, the blade extends again due to the spring and is ready to machine the back side of the bore. This eliminates the need for time-consuming workpiece turning or stopping the spindle. As the tools are integrated directly into the existing manufacturing process, upstream and downstream processes are no longer required. Consequently, process times can be significantly reduced and process costs lowered.

Yes. As HEULE’s tooling systems operate entirely mechanically, they can be up and running on your CNC machine in no time. The major advantages of HEULE tools are particularly evident when producing large production runs on your machine, as there is no need for the laborious task of turning the workpieces. Compared with other deburring methods, such as manual deburring , these mechanical tooling solutions are extremely reliable and cost-effective.

HEULE chamfering tools and the corresponding carbide blades are extremely robust, enabling the machining of all common materials – from easily machinable aluminium to materials that are difficult to machine, such as titanium or Inconel.

Machining workpieces with tolerances is no problem for HEULE. In the case of tools with a movable blade, the blade only begins deburring upon contact with the edge of the bore. This means that, for example, castings with their typical tolerance variations can be machined reliably and with consistent deburring results. The disadvantages of rigid systems are thus eliminated.

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When machining edges with conventional chamfering cutters, an undesirable secondary burr often forms because the material is pushed over the edges. To achieve results that are as burr-free as possible and maximise cost-effectiveness, we make the following recommendation: use our specialised tooling solutions (e.g. SNAP, DEFA).

Which tool is right for you depends directly on the required chamfer type, the size, the angle and the exact position on the workpiece. If simple edge rounding is sufficient, the COFA deburring tool can help. For defined chamfers and tight tolerances in CNC series production, mechanical chamfering tools are essential, such as SNAP or DEFA from HEULE.

If our standard range does not provide a solution for your needs, we will be happy to assist you with customised solutions. Our deburring specialists will either adapt existing tooling systems (e.g. working length) or develop completely new systems.

https://www.heule.com/en/service-package/custom-development

HEULE Chamfering Tools

SNAP

DEFA