Spiral router bit for acrylic & plastics with low helix VHM Z1 D4 I8 L60 S4 RH Finishing positive

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

Index: ST28.04.008.060.04R

Industrial single-edged spiral milling cutter made from solid carbide (VHM) with positive geometry (upward chip removal). The tool is equipped with a small helix angle, effectively preventing lifting and vibrations of the machined material. It performs excellently in precision cutting, edge joining, and alignment of thin materials with a thickness of 1 mm to 8 mm on CNC machines and overhead spindle 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 the accuracy class H6 eliminates radial runout, protecting the machine’s drive system and ensuring stability during machining.

Design advantages and technical properties:

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

Intended use and application range:

The tool is intended for cutting operations, edge joining, and alignment in thin plastic sheets on CNC machining centres.

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