Chamfer 90° VHM Carbide Center 2 flutes For Aluminum, Plastic, Brass

This solid carbide chamfer mill with a 90° included point angle is intended for edge machining in aluminium, copper, brass and plastics. Its two cutting edges are used for chamfering and deburring, while the conical tip can also produce a shallow spot to locate a hole.

Choose the size to match the shank diameter, required cutting diameter and access to the workpiece. The range includes tools with overall lengths of 50, 60 or 75 mm, plus selected sizes with a 100 mm overall length. Images illustrate the geometry; the dimensions of each tool are stated on its size card.

1. Construction and technical specifications

The tool is made from solid carbide, also designated VHM. The cutting section has two flutes and a conical 90° tip. Clamp the cylindrical shank in a holder matched to its actual diameter.

The cutting diameter describes the cutting section, not the width of the finished chamfer. The resulting chamfer also depends on the tool position and depth of engagement. Overall length is neither flute length nor the permitted machining depth.

2. Workpiece materials

This version is primarily intended for non-ferrous metals and plastics. Carry out a trial cut in the actual material grade: alloy composition, material condition and susceptibility to deformation affect the finished edge.

When machining plastics, monitor heat, deformation and material build-up. In non-ferrous metals, check that chips leave the cutting zone instead of being recut. A two-flute design does not replace correct clamping, feed selection and suitable coolant or air supply.

3. Chamfering, deburring and spot drilling

The same tool can support several finishing operations, but each requires a suitable toolpath and access to the surface. Before machining, check clearance between the holder, shank, workpiece and fixture.

For spot drilling, consider the geometry of the drill used in the next operation. A 90° spot is not automatically suitable for every drill, particularly a carbide drill. Do not use the chamfer mill as a substitute for a drill when producing a full-depth hole.

4. Reading the size designation

The designation 4x4Dx50Lx90° describes a 4 mm cutting diameter, 4 mm shank diameter, 50 mm overall length and 90° included point angle. D and L refer to different dimensions; check both when selecting the tool and holder.

Within this range, the shank diameter matches the cutting diameter. The Ø1 variant has a Ø1 mm shank and the Ø2 variant has a Ø2 mm shank. Check the collet clamping range carefully, especially for these small sizes; it must match the chosen tool.

5. Available variants and length selection

The table groups the variants by overall length. All have two flutes and a 90° included point angle. Cutting diameter d and shank diameter D are equal for every size listed.

Choose the shortest tool and smallest overhang that allow safe access to the edge. A 100 mm tool may provide the required reach, but the entire overall length is not a cutting section.

Before ordering, compare the size with the required access, available holder clearance and clamping range. A larger tool diameter does not require a wider chamfer: the machining setup determines the finished chamfer dimensions.

6. Clamping and starting the operation

1. Match the holder to the shank. Clean the shank, collet and clamping surfaces. Check the cutting edges and ensure that the tool is seated correctly.
2. Keep overhang short. Extend the tool only as far as the operation requires, following the holder requirements. Do not clamp the cutting section.
3. Use a stable setup. Clamp the workpiece securely and check runout. This tool requires controlled machining conditions; do not select it for a handheld drill or a low-speed drill press.
4. Make a trial pass. Begin with light engagement, inspect the chamfer and adjust the tool position. Set cutting conditions for the actual material, engaged diameter and rigidity of the setup.
5. Monitor chips and finish. Provide chip evacuation and coolant or air appropriate to the workpiece material. If vibration, an uneven chamfer or material build-up occurs, stop machining and investigate the cause.

Cutting speed varies along the cone with the diameter at which the cutting edge is engaged. Spindle speed and feed therefore cannot be selected solely from the nominal shank diameter. Assess cutting conditions separately for longer overhangs instead of directly copying settings from a shorter tool.

7. Selecting the product and scope of supply

Choose one size in the variant selector. The offer is for one chamfer mill in the selected size; the list of available diameters does not represent a set containing every tool.

The size card states d, D, L, included point angle and number of flutes. Its diagram is illustrative and must not be used to measure tool proportions on screen. Before confirming your selection, compare the stated dimensions with your holder and operation requirements.

8. Frequently asked questions

Does a 90° chamfer mill produce a 45° chamfer?

Yes, with the appropriate orientation of the tool axis to the surface. The 90° value is the full cone angle; chamfer width and position depend on the programmed toolpath and engagement depth.

Does a 100 mm length mean a 100 mm cutting section?

No. This is the overall length, including the shank. When assessing access to an edge, also allow for the holder, overhang and position of the cutting section.

Do the Ø1 and Ø2 variants have a Ø4 mm shank?

No. In this range, the Ø1 variant has a Ø1 mm shank and the Ø2 variant has a Ø2 mm shank. Your collet must accommodate the selected diameter within its permitted clamping range.

Can the tool be used for spot drilling?

It can produce a shallow spot where a 90° angle is appropriate for the operation. Selection before subsequent drilling also depends on the geometry and material of the drill.

Is this tool primarily intended for steel?

This version is primarily intended for aluminium, copper, brass and plastics. For regular steel machining, select a tool intended for the particular material grade and operation.

Do two cutting edges guarantee a burr-free result?

The result also depends on the workpiece material, edge condition, clamping, chip evacuation and cutting parameters. Inspect the finished edge after a trial pass and adjust the process where necessary.