Spiral router bit Roughing VHM Z3 D18 I95 L150 S18 RH positive

Three-flute coarse VHM spiral end mill for lock cavities

Index: SF30.18.095.150.18R

Industrial spiral end mill made from solid carbide (VHM) from the SF30 series, intended for efficient rough machining and deep cavity chiselling for door locks on CNC machining centres and overhead spindle milling machines. The tool features a three-flute spiral geometry with a coarse profile (Z3) and upward chip extraction (positive), ensuring efficient removal of chips and a clean lower edge of the material. Coarse tooth design with a chip breaker reduces cutting resistance and decreases spindle load. The extended body with a taper allows for deep penetration into the material without the risk of rubbing or burning the edge. The ground shank with an accuracy class of H6 eliminates radial runout, protecting the drive system and ensuring process stability.

Design advantages and technical properties:

• Three-flute coarse Z3 (positive) design: The dedicated coarse profile breaks the chip into small fragments, reduces cutting resistance, efficiently evacuates chips upward, and guarantees a clean lower edge of the machined part.
• Monolithic carbide (VHM): The rigid monolithic construction reduces tool deflection under load and maintains high dimensional precision.
• Extended body with face milling: The non-cutting portion is face-milled to provide technological clearance, allowing for deep chiselling of lock cavities without the risk of the body rubbing against the material walls.
• Low grip roughness (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 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 intended for chiselling and rough milling operations of lock cavities and for cutting and deep penetration in door wings on CNC machines.

It performs excellently when machining materials such as: softwood and hardwood, plywood, as well as raw particleboard and raw MDF.