Spiral router bit for acrylic & plastics VHM Z1 D12 I42 L90 S12 RH Finishing positive

Single-blade spiral VHM mill for PLEXI with upward chip evacuation

Index: ST01.12.042.090.12R

Industrial single-blade spiral mill made of solid carbide (VHM) with positive geometry (upward chip evacuation). Designed for precise cutting, welding, and edge smoothing in plexiglass, plastics, and composites on CNC machines and overhead milling machines. The finishing geometry with one blade (Z1) combined with a polished chip flute effectively prevents material sticking and melting. The right-hand helical design efficiently evacuates chips upwards, protecting the cutting zone from overheating and ensuring a smooth edge without the need for additional polishing. The ground shank with an accuracy class of H6 eliminates radial runout, protecting the machine's drive system.

Design features and technical properties:

• Single-blade design Z1 (positive): The single cutting edge allows for rapid chip evacuation, minimising friction and the risk of overheating the material.
• Polished chip flute: The mirrored surface of the spiral prevents sticking and the secondary welding of chips to the tool body.
• Finishing blade geometry: Precisely sharpened edge ensures cleanliness and smoothness of the edge after cutting.
• Solid carbide (VHM): The rigid VHM construction reduces vibrations and maintains dimensional precision.
• Low shank roughness (Ra ≤ 0.3 µm): The ground shank surface prevents slipping in the holder and protects the spindle taper from wear.
• Dynamic balance class G2.5: Balancing in accordance with ISO standards ensures vibration-free operation at very high rotational speeds.

Purpose and scope of use:

The tool is designed for cutting, welding, and edge smoothing operations in plastics at CNC machining centres.

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