Spiral router bit for acrylic & plastics with low helix VHM Z1 D6 I12 L60 S6 RH Finishing positive

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

Index: ST28.06.012.060.06R

Industrial single-edge spiral end mill made from solid carbide (VHM) with positive geometry (upward chip removal). The tool is equipped with a small angle of the helix, effectively preventing lifting and vibrations of the machined material. It excels in precision cutting as well as edge sealing and levelling of thin materials with thicknesses from 1 mm to 8 mm on CNC machines and overhead milling machines. The finishing geometry with a single cutting edge (Z1) combined with a polished flute prevents sticking and melting of the workpiece. 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 upward pulling forces, preventing the lifting of flimsy sheets.
• Single-edge Z1 construction (positive): A single cutting edge allows for efficient chip removal, minimizing friction and the risk of overheating the material.
• Polished flute: The mirror-like surface of the spiral prevents sticking and re-welding of chips to the tool body.
• Finishing blade geometry: Precisely ground edge guarantees perfect edge quality without fraying.
• Low grip roughness (Ra ≤ 0.3 µm): The ground surface of the shank prevents slipping in the holder and protects the spindle cone 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 edge sealing and levelling in thin plastic sheets on CNC machining centres.

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