Spiral router bit Finishing VHM Z3 D12 I35 L80 S12 RH positive TiSiN

Three-flute spiral end mill made of solid carbide with chip breaker and TiSiN coating 12x35 mm from the SC23 series – maximum durability and machining efficiency 

Index: SC23.12.035.080.12TR

High-performance spiral end mill made from solid sintered carbide (VHM) from the SC23 range, designed for shaping, cutting, and rough and finishing operations on overhead spindle milling machines and CNC centres. The tool uses a three-flute spiral geometry in a Z3R positive configuration, ensuring instant removal of dust and chips upwards and maintaining perfect cleanliness of the lower edge. The applied TiSiN protective coating significantly reduces friction, prevents overheating of the cutting edges, and greatly extends the tool's operational life. A ground shank with a tolerance class of H6 eliminates radial runout, protecting the spindle bearing assembly and ensuring impeccable quality of the detail.

Structural advantages and technical properties:

• Advanced TiSiN protective coating: PVD layer with microstructural hardness of 3570 HV 0.05, thickness of 1–4 µm, and low friction coefficient (0.5) shows resistance to thermal loads, reduces resistance, and significantly extends tool life.
• Geometry with Z3R chip breaker (upward ejection): The arrangement of three cutting edges with a chip breaker reduces work resistance, facilitates the ejection of crushed material, and allows for fast feed with perfect finishing of the lower edge.
• Premium solid carbide (VHM) monolith: The rigid monolithic construction limits tool deflection under load and ensures high dimensional precision.
• Low roughness of the clamping part: The shank surface with a roughness index of Ra ≤ 0.3 µm protects the mill from rotation in the holder and eliminates the risk of wear on the spindle taper.
• Dynamic balancing to 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.

Purpose and area of application:

The tool is intended for cutting, contour milling, groove milling, and roughing and finishing machining.

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