Spiral router bit for acrylic & plastics with low helix VHM Z1 D9,525 I25,4 L63,5 S9,52 RH Finishing positive

Single-edged VHM spiral end mill for PLEXI with upward chip removal – clean bottom edge and efficient chip disposal

Index: ST28.95.254.635.95R

Industrial single-edged spiral end mill made from solid carbide (VHM) with positive geometry (upward chip removal). The tool is equipped with a small angle of incline on the screw line, which effectively prevents lifting and vibrations of the machined material. It performs excellently in precision cutting, welding, and edge alignment of thin materials with a thickness ranging from 1 mm to 8 mm on CNC machines and overhead milling machines. The finishing geometry with one cutting edge (Z1) combined with a polished flute prevents clogging and melting of the chips. The ground shank in accuracy class H6 eliminates radial runout, protecting the machine's drive system and ensuring machining stability.

Construction advantages and technical properties:

• Dedicated to thin materials (1–8 mm): Reduced spiral eliminates pulling forces upwards, preventing lifting of flexible sheets.
• Single-edged design Z1 (positive): A single cutting edge enables efficient chip removal, minimizing friction and the risk of overheating the material.
• Polished flute: The mirror-like surface of the spiral prevents chip adhesion and re-welding of chips to the tool body.
• Finishing blade geometry: Precisely sharpened edge guarantees perfect edge quality without fraying.
• Low shank roughness (Ra ≤ 0.3 µm): The ground surface of the shank protects against slipping in the holder and protects the spindle taper from wear.
• Dynamic balancing in class G2.5: Balancing in accordance with ISO standards guarantees vibration-free operation at very high speeds.

Intended use and application range:

The tool is designed for cutting operations, as well as welding and edge alignment in thin plastic sheets on CNC machining centres.

Used for processing materials such as: PLEXI (acrylic), plastics, ALUCOBOND® sheets, ALUCOBOND® A2, and composites like CORIAN® and HPL.