Spiral router bit Roughing VHM Z3 D8 I42 L90 S8 RH positive NaDia

Three-flute roughing solid carbide spiral cutter 8x42 mm from the SF01 series – maximum efficiency in rough machining 

Index: SF01.08.042.090.08XR

Industrial solid carbide spiral cutter (VHM) from the SF01 line, designed for intensive cutting, preliminary shaping, and efficient rough machining on bridge mills and CNC centres. The tool features a three-flute spiral geometry with a roughing profile in a positive configuration Z3, ensuring effective chip evacuation upwards and a clean finish on the lower edge of the workpiece. The dedicated roughing teeth effectively divide the material into smaller particles, reducing cutting resistance and alleviating the machine's drive system. The ground shank in the tolerance class H6 eliminates radial runout, protecting the spindle and guaranteeing a high level of stability during operation.

Structural advantages and technical properties:

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

Intended use and application range:

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

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