Spiral router bit Roughing VHM Z3 D20 I102 L165 S20 RH positive NaDia

VHM three-flute coarse spiral end mill 20x102 mm from the SF01 series – maximum efficiency in rough machining 

Index: SF01.20.102.165.20XR

Industrial spiral end mill made of solid carbide (VHM) from the SF01 line, designed for intensive cutting, preliminary shaping and efficient rough machining on overhead spindle milling machines and CNC centres. The tool employs a three-flute spiral geometry with a coarse profile in a positive Z3 configuration, ensuring efficient chip removal upwards and a clean finish on the bottom edge of the workpiece. Dedicated coarse teeth effectively break the material into smaller pieces, reducing cutting resistance and alleviating the machine's drive system. The ground shank in tolerance class H6 eliminates radial runout, protecting the spindle and guaranteeing a high level of stability during operation.

Design features and technical specifications:

• Coarse Z3 design (upward chip removal): Three cutting edges with a coarse profile reduce work resistance, efficiently remove chips upwards and allow for machining at high feed rates while maintaining a clean bottom edge.
• Premium solid carbide (VHM) monolith: The rigid monolithic construction limits tool deflection under load and ensures high dimensional precision.
• NaDia protective coating: A specialist black PVD coating with a hardness of 3650 HV 0.05, a thickness of 1–4 µm and an extremely low friction coefficient (0.01–0.05) exhibits exceptional wear resistance, reduces cutting resistance, prevents material adhesion and significantly extends tool life.  
• Low roughness of the clamping part: The surface of the shank with a roughness indicator of Ra ≤ 0.3 µm protects the end mill from rotating in the holder and eliminates the risk of wear on the spindle taper.
• Dynamic balancing to G2.5 standard: Certified static-dynamic balancing in a stringent class G2.5 (according to ISO/EN) eliminates noise and reduces vibrations generated at high speeds.

Intended use and application range:

The tool is intended for cutting operations, preliminary shaping and efficient rough machining.

It performs excellently in the machining of materials such as: soft and hard wood, plywood, and raw particle board and raw MDF board.