Spiral router bit Finishing VHM Z3 D20 I60 L120 S20 RH negative

VHM spiral milling cutter three-edge 20x60 mm from the SC51 series – ideal edge quality and high performance 

Index: SC51.20.060.120.20R

High-performance spiral cutter made from solid sintered carbide (VHM) from the SC51 line, designed for precise cutting, shaping, grooving, and finishing on overhead spindle milling machines and CNC centres. The tool utilises three-edge spiral geometry in a Z3 configuration with a negative arrangement, which forces effective chip removal downwards. The use of high-quality micro-grain carbide provides high wear resistance and significantly extends the cutting edge's durability. The ground shank in tolerance class H6 eliminates radial runout, protecting the spindle bearing assembly and ensuring an excellent finish standard of the machined material.

Construction advantages and technical properties:

• Z3 finishing geometry (downward chip removal): Three cutting edges directing the chips downwards guarantee a clean top edge of the raw material, prevent chipping, and effectively avoid lifting veneer or laminate at high feed speeds.
• Premium sintered carbide monolith (VHM): The rigid, monolithic structure prevents deformation of the cutter during operation under high force, allowing for narrow dimensional tolerances to be maintained.
• PVD coating option: The possibility of applying protective layers (e.g. TiSiN or PLATINIUM) allows for multiple extensions of the cutting edge's lifespan, reduces friction, and protects against overheating.
• Low roughness of the shank: The shaft surface with a roughness index of Ra ≤ 0.3 µm prevents the cutter from rotating in the holder and eliminates the risk of wear on the cone in the spindle.
• Dynamic balancing within G2.5 standard: Certified static-dynamic balancing in the stringent G2.5 class (according to ISO/EN) reduces noise and vibrations generated at high speeds (up to 18,000 RPM).

Intended use and application range:

The tool is intended for cutting operations, peripheral milling, grooving, and edge finishing.

It works excellently for machining materials such as: soft and hard wood, raw and laminated MDF board, raw and laminated plywood, and raw and laminated particleboard.