Router bit for composites Roughing D4 I22 L60 S5 RH

Multi-flute spiral cutter VHM composite roughing mill – rosette face (CNR) and delamination-free machining

Index: CNR.04.022.060.05R

Industrial roughing cutter made from a solid carbide (VHM) with a rosette face type (CNR) and neutral cutting edge geometry (chip ejection to the sides). The front design 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 down the material, preventing the delamination of composites and the pulling of glass and carbon fibres. The neutral cutting direction does not generate axial forces (either compressive or lifting), ensuring a high quality edge finish on both sides of the plate. Dedicated to efficient cutting, grooving, and joining 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 face geometry (CNR): The dedicated face configuration reduces resistance during axial immersion, allowing for stable entry into the material.
• Roughing multi-edge system: Dense tooth arrangement finely crushes chips, preventing layer separation and fraying of edges.
• Neutral chip ejection to the sides: Lack of pressure and lifting of the workpiece ensures stable cutting and a clean profile on both sides.
• Solid carbide (VHM): High hardness and abrasion resistance ensure longer tool life when machining abrasive materials.
• Low shank roughness (Ra ≤ 0.3 µm): Precisely ground shank prevents slippage in the holder and protects the spindle taper from wear.
• Dynamic balance G2.5: Compliance with ISO standards allows for safe and vibration-free operation at very high speeds.

Intended use and application range:

The tool is intended for rough cutting operations, axial immersion into the material, cutting, and joining in composites and plywood on CNC machines.

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