Spiral router bit Roughing VHM Z3 D14 I58 L110 S14 RH positive NaDia

Three-flute VHM roughing end mill with 60° drilling tip 14x58 mm from the SF05 series – for door viewer

Index: SF05.14.058.110.14XR

Industrial spiral end mill made from solid carbide (VHM) from the SF05 line, designed for rough machining and creating holes for door viewers on overhead spindle milling machines and CNC centres. The tool utilises a three-flute spiral geometry with a roughing profile in configuration Z3 with a positive layout and a front drilling tip of 60°, allowing stable penetration into the material and efficient chip evacuation upwards. The dedicated roughing teeth reduce cutting resistance and alleviate the machine's drive system. The ground shank in tolerance class H6 minimises radial runout, protecting the spindle and ensuring a high level of stability during operation.

Structural advantages and technical properties:

• Roughing design Z3 with a front drilling tip of 60° (upward chip removal): The roughing profile reduces work resistance and efficiently removes chips upwards, while the special 60° drilling tip ensures clean and precise penetration into the material for door viewers.
• Monolith of Premium carbide (VHM): The rigid monolithic structure 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) 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 prevents the mill from rotating in the holder and eliminates the risk of wear on the cone in the spindle.
• Dynamic balance to G2.5 standard: Certified static-dynamic balancing in the high class G2.5 (according to ISO/EN) reduces noise and diminishes vibrations generated at the highest speeds.

Intended use and applications:

The tool is designed for cutting operations, material penetration, creating holes for door viewers, and efficient rough machining.

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