Router bit for composites Roughing D8 I25 L80 S8 RH

Multi-edge spiral milling cutter VHM for composites – rosette front (CNR) and machining without delamination

Index: CNR.08.025.080.08R

Industrial roughing cutter made from solid carbide (VHM) with a rosette-type front (CNR) and neutral blade geometry (chip removal to the sides). The front design facilitates axial entry into the material along the Z-axis, reducing cutting resistance and eliminating the risk of damaging the structure upon entry. The multi-edge cutting system chops the material, preventing delamination of the composites and pulling of glass and carbon fibres. The neutral cutting direction does not induce axial forces (either pressing or lifting), ensuring a high standard of edge finish on both sides of the plate. Dedicated to efficient cutting, grooving, and bonding on CNC machining centres. Ground shank in class H6 protects the spindle from vibrations and prevents radial runout.

Structural advantages and technical properties:

• Rosette front geometry (CNR): The dedicated front design reduces resistance during axial entry, allowing stable entry into the material.
• Roughing multi-edge system: Dense tooth arrangement finely crushes chips, preventing layer separation and edge fraying.
• Neutral chip removal to the sides: The absence 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 taper from wear.
• Dynamic balancing G2.5: Compliance with ISO standards enables safe and vibration-free operation at very high speeds.

Intended use and application range:

The tool is intended for rough cutting operations, entering the material along the Z-axis, separating, and bonding in composites and plywood on CNC machines.

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