Spiral router bit Finishing VHM Z3 D18 I55 L110 S18 RH negative

Three-flute VHM spiral cutter 18x55 mm from the SC51 series – ideal quality of the upper edge and high performance 

Index: SC51.18.055.110.18R

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

Design advantages and technical properties:

• Z3 finishing geometry (downward discharge): Three cutting edges directing the chips downwards ensure a clean upper edge of the raw material, prevent tearing and effectively prevent veneer or laminate lifting at high feed speeds.
• Monolith made of Premium sintered carbide (VHM): Rigid, monolithic construction prevents distortion of the cutter during high-force work, allowing for narrow dimensional tolerances to be maintained.
• Option for PVD coating: The option to apply protective layers (including TiSiN or PLATINIUM) allows for multiple extensions of the edge's lifespan, reduces friction and protects against overheating.
• Low roughness of the gripping part: The shank surface with a roughness indicator of Ra ≤ 0.3 µm prevents the cutter from rotating in the holder and eliminates the risk of wearing the cone in the spindle.
• Dynamic balancing to G2.5 standards: Certified static-dynamic balancing in an advanced class of G2.5 (according to ISO/EN) reduces noise and vibrations generated at the highest speeds (up to 18,000 RPM).

Purpose and range of applications:

The tool is designed for cutting, contour milling, grooving and edge finishing operations.

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 particle board.