Spiral router bit Roughing VHM Z3 D20 I95 L150 S20 RH positive

Three-edged rough spiral milling cutter VHM for lock sockets

Index: SF30.20.095.150.20R

Industrial spiral milling cutter made of solid carbide (VHM) from the SF30 series, designed for efficient rough machining and chiselling of deep sockets for door locks on CNC machining centres and overhead spindle milling machines. The tool features a three-edged spiral geometry with a roughing profile (Z3) and upward chip removal (positive), ensuring efficient chip evacuation and a clean lower edge of the material. The roughing teeth with a chip breaker reduce cutting resistance and decrease the spindle load. The elongated body with tapering allows for deep penetration into the material without the risk of rubbing or burning the edges. The ground shank in class H6 eliminates radial runout, protecting the drive system and ensuring process stability.

Design advantages and technical properties:

• Three-edged rough design Z3 (positive): The dedicated roughing profile breaks chips into small pieces, lowers cutting resistance, efficiently evacuates chips upwards, and guarantees a clean lower edge of the machined component.
• Solid carbide (VHM): The rigid monolithic construction reduces tool deflections under load and allows for maintaining high dimensional precision.
• Extended body with recess: The recessed non-cutting part provides technological clearance, allowing for deep chiselling of lock sockets without the risk of rubbing the body against the material walls.
• Low roughness of shank (Ra ≤ 0.3 µm): The ground surface of the shank prevents slipping in the tool holder and protects the spindle taper from wear.
• Dynamic balancing in class G2.5: Balancing in accordance with ISO standards eliminates vibrations and reduces noise at high rotational speeds.

Intended use and application range:

The tool is designed for chiselling and rough milling operations for door lock sockets and for cutting and deep embedding in door leaves on CNC machines.

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