Spiral router bit for acrylic & plastics with low helix VHM Z1 D3 I12 L60 S3 RH Finishing positive

Single-edged spiral milling cutter VHM for PLEXI with upward chip removal – clean lower edge and efficient chip removal

Index: ST28.03.012.060.03R

Industrial single-edged spiral milling cutter made from solid cemented carbide (VHM) with positive geometry (upward chip removal). The tool features a small angle of inclination of the helical profile, which effectively prevents lifting and vibrations of the machined material. It performs excellently in precise cutting, welding, and edge levelling of thin materials with a thickness from 1 mm to 8 mm on CNC machines and overhead spindle milling machines. The finishing geometry with one edge (Z1) combined with a polished chip groove prevents sticking and melting of the material. The ground shank in accuracy class H6 eliminates radial runout, protecting the machine's drive system and ensuring stability during machining.

Design advantages and technical properties:

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

Purpose and application range:

The tool is designed for cutting operations and edge welding and levelling in thin plastic sheets on CNC machining centres.

Used in the processing of materials such as: PLEXI (acrylic), plastics, ALUCOBOND® panels, ALUCOBOND® A2, and composites like CORIAN® and HPL.