Router bit for composites Roughing D12 I30 L90 S12 RH

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

Index: CNR.12.030.090.12R

Industrial roughing end mill made from solid carbide (VHM) with a rosette front (CNR) and neutral cutting edge geometry (chip ejection to the sides). The front construction facilitates axial entry into the material in the Z-axis, reducing cutting resistance and eliminating the risk of structure damage upon entry. The multi-edge cutting system crushes the material, preventing delamination of composites and extraction of glass and carbon fibres. The neutral cutting direction does not generate axial forces (either pressing or lifting), ensuring a high standard of edge finish on both sides of the plate. Designed for efficient cutting, grooving, and welding on CNC machining centres. The ground shank in class H6 protects the spindle from vibrations and prevents radial runout.

Design advantages and technical properties:

• Rosette front geometry (CNR): The dedicated front configuration reduces resistance during axial plunging, allowing stable entry into the material.
• Rough multi-edge system: Dense tooth arrangement finely crushes chips, preventing layer separation and edge fraying.
• Neutral chip ejection to the sides: The absence of pressure and lifting on the workpiece guarantees stable cutting and a clean profile on both sides.
• Monolithic 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 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 in the Z-axis, cutting and welding in composites and plywood on CNC machines.

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