Spiral router bit for acrylic & plastics with low helix VHM Z1 D5 I8 L60 S5 RH Finishing positive

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

Index: ST28.05.008.060.05R

Industrial one-edged spiral milling cutter made of sintered carbide (VHM) with positive geometry (upward chip removal). The tool is equipped with a small helix angle, which effectively prevents lifting and vibrations of the processed material. It works perfectly for precise cutting as well as back-beveling and edge truing of thin materials with a thickness of 1 mm to 8 mm on CNC machines and spindle milling machines. The finishing geometry with a single cutting edge (Z1) combined with a polished chip groove prevents sticking and melting of the chips. The ground shank in accuracy class H6 eliminates radial runout, protecting the machine's drive system and ensuring stability during machining.

Construction advantages and technical properties:

• Dedicated to thin materials (1–8 mm): Reduced helix eliminates upward pulling forces, preventing lifting of flimsy sheets.
• Single-edge Z1 (positive) design: 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 helix prevents sticking and re-welding of chips to the tool body.
• Finishing blade geometry: Precisely ground edge ensures perfect edge quality without fraying.
• Low shank roughness (Ra ≤ 0.3 µm): Ground shank surface prevents slipping in the holder and protects the spindle taper from wear.
• Dynamic balancing in class G2.5: Balancing according to ISO standards guarantees vibration-free operation at very high speeds.

Intended use and application range:

The tool is intended for cutting operations as well as back-beveling and edge truing of thin plastic sheets on CNC machining centres.

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