Spiral router bit Roughing VHM Z3 D8 I22 L60 S8 RH positive TiSiN

Three-flute spiral milling cutter VHM with chip breaker and TiSiN coating 8x22 mm from the SC23 series – maximum lifespan and machining efficiency 

Index: SC23.08.022.060.08TR

This high-performance spiral cutter is made from a solid monolith of sintered carbide (VHM) from the SC23 line, intended for profiling, cutting, and roughing and finishing operations on overhead spindle milling machines and CNC centres. The tool features a three-flute spiral geometry in a Z3R configuration with a positive setup, which guarantees immediate removal of dust and chips upwards while maintaining perfect cleanliness of the bottom edge. The applied TiSiN protective coating significantly reduces friction, prevents overheating of the cutting edges, and prolongs the cutter's lifespan multiple times. The ground shank in tolerance class H6 eliminates radial runout, protects the spindle bearing system, and ensures impeccable quality of the detail.

Design advantages and technical properties:

• Advanced TiSiN protective coating: PVD layer with microstructural hardness of 3570 HV 0.05, thickness of 1–4 µm, and a low friction coefficient (0.5) shows resistance to thermal loads, reduces drag, and significantly extends tool durability.
• Chip breaker geometry Z3R (upward eject): The arrangement of three cutting edges with a chip breaker reduces operating resistance, facilitates the ejection of crushed material, and allows for rapid feed with an ideal finish on the bottom edge.
• Monolith of Premium sintered carbide (VHM): The rigid monolithic structure reduces deflection of the tool under load and ensures high dimensional precision.
• Low roughness of the shank: The surface of the shank with a roughness indicator of Ra ≤ 0.3 µm secures the cutter from rotating in the holder and eliminates the risk of wear on the cone in the spindle.
• Dynamic balancing to G2.5 standard: Certified static-dynamic balancing in the stringent class G2.5 (according to ISO/EN) reduces noise and vibrations generated at the highest speeds.

Intended use and range of applications:

This tool is intended for cutting, contour milling, keying, as well as medium-rough and finishing machining.

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