Router bit for composites Roughing D6 I25 L70 S6 RH

Multi-edged VHM spiral end mill for composites – rosette face (CNR) and processing without delamination

Index: CNR.06.025.070.06R

Industrial roughing mill made from solid carbide (VHM) with a rosette-type face (CNR) and neutral cutting geometry (chip ejection to the sides). The design of the face facilitates axial entry into the material along the Z-axis, reducing cutting resistance and eliminating the risk of structural damage upon entry. The multi-edge cutting system breaks up the material, preventing the delamination of composites and the pulling out of glass and carbon fibres. The neutral cutting direction does not generate axial forces (either pushing or lifting), ensuring a high standard of edge finish on both sides of the board. Designed for efficient cutting, grooving, and joining on CNC machining centres. The H6-class ground shank secures the spindle against vibrations and prevents radial runout.

Design advantages and technical properties:

• Rosette frontal geometry (CNR): The dedicated face design reduces resistance during axial penetration, allowing stable entry into the material.
• Roughing multi-edge layout: Dense teeth finely crush the chips, preventing layer separation and fraying of edges.
• Neutral chip ejection to the sides: The lack of pressure and lifting of the workpiece guarantees stable cutting and a clean profile on both sides.
• Solid carbide (VHM): High hardness and wear resistance ensure longer life when machining abrasive materials.
• Low shank roughness (Ra ≤ 0.3 µm): Precisely ground shank prevents slipping in the holder and protects the spindle cone from wear.
• Dynamic balancing G2.5: Compliance with ISO standards allows for safe and vibration-free operation at very high speeds.

Intended use and range of application:

Tool intended for rough cutting operations, entry into material along the Z-axis, cutting and joining in composites and plywood on CNC machines.

Used for machining materials such as: carbon fibre reinforced plastics (CFRP), glass fibre (GFRP), CORIAN® composite boards, HPL laminates, and plywood.