Spiral router bit Roughing VHM Z3 D16 I55 L110 S16 RH positive NaDia

Three-throw VHM roughing spiral cutter with a 60° drilling tip 16x55 mm from the SF05 series – for door viewer

Index: SF05.16.055.110.16XR

Industrial spiral cutter made from a solid carbide (VHM) from the SF05 line, designed for rough machining and creating holes for door viewers on vertical milling machines and CNC centres. The tool features a three-throw spiral geometry with a rough profile in a Z3 configuration with a positive design and a front drilling tip of 60°, allowing for stable penetration into the material and efficient chip removal upwards. The dedicated roughing teeth reduce cutting forces and relieve 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.

Construction advantages and technical properties:

• Z3 roughing design with a 60° front drilling tip (upward chip removal): The rough profile reduces working resistance and efficiently removes chips upwards, while the special 60° drilling tip ensures clean and precise penetration into the material for door viewers.
• Premium solid carbide (VHM): The rigid monolithic construction limits tool deflection under load and ensures high dimensional accuracy.
• NaDia protective coating: The specialist black PVD coating with a hardness of 3650 HV 0.05, 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 shank surface with a roughness index of Ra ≤ 0.3 µm secures the cutter from rotating in the holder and eliminates the risk of cone wear in the spindle.
• Dynamic balancing to G2.5 standard: Certified static-dynamic balancing in the stringent G2.5 class (according to ISO/EN) eliminates noise and reduces vibrations generated at high speeds.

Intended use and application range:

The tool is intended for cutting, drilling into material, creating holes for door viewers, and efficient rough machining.

It is excellent for machining materials such as: soft and hard wood, plywood, as well as raw chipboard and raw MDF board.