Spiral router bit for acrylic & plastics with low helix VHM Z1 D3 I8 L60 S3 RH Finishing positive

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

Index: ST28.03.008.060.03R

Industrial single-edged spiral cutter made from solid carbide (VHM) with positive geometry (upward chip removal). The tool is equipped with a small angle of helix, which effectively prevents lifting and vibrations of the processed material. It is perfect for precise cutting, welding, and aligning edges of thin materials with thicknesses from 1 mm to 8 mm on CNC machines and overhead milling machines. The finishing geometry with a single 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.

Structural advantages and technical properties:

• Dedicated to thin materials (1–8 mm): Reduced spiral eliminates upward pulling forces, preventing lifting of flexible sheets.
• Single-edged Z1 design (positive): The single cutting edge allows for efficient chip removal, minimising friction and the risk of overheating the material.
• Polished chip groove: The mirror surface of the spiral prevents sticking and secondary 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 surface of the shank prevents slipping in the holder and protects the spindle taper from wear.
• Dynamic balancing in class G2.5: Balancing according to ISO standards ensures vibration-free operation at very high speeds.

Intended use and application range:

The tool is intended for cutting operations as well as welding and aligning edges in thin plastic sheets on CNC machining centres.

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