Spiral router bit for acrylic & plastics VHM Z1 D3 I12 L60 S6 RH Finishing negative

Single-blade spiral mill VHM for PLEXI with downward chip removal – ideal upper edge

Index: ST51.03.012.060.06R

Industrial single-blade spiral mill made from solid sintered carbide (VHM) with negative geometry (downward chip removal). Designed for precise cutting, edge bonding, flattening, trenching, and grooving in plexiglass, plastics, and composites on CNC machines and overhead milling machines. The left-hand screw line presses the workpiece against the table and removes chips downwards, which is ideal for machining small parts and flexible plastic sheets. The special finishing geometry with one blade (Z1) combined with a polished chip flute effectively prevents material sticking and melting, ensuring a perfectly finished upper surface edge. The ground shank in the accuracy class H6 eliminates radial runout, protecting the machine's drive system.

Design advantages and technical properties:

• Single-blade design Z1 (negative): The single cutting blade efficiently removes chips downwards, stabilising the material on the operating table.
• Polished chip flute: The mirror-like surface of the spiral counteracts chip sticking and re-welding with the body.
• Finishing blade geometry: The precisely ground edge ensures perfect edge quality without fraying and damage to the upper surface.
• Monolithic sintered carbide (VHM): The high structural rigidity of VHM eliminates vibrations and maintains dimensional stability.
• Low shank roughness (Ra ≤ 0.3 µm): The ground shank surface protects the holder and spindle cone from wear and prevents slippage.
• Dynamic balancing in class G2.5: Balancing in accordance with ISO standards guarantees vibration-free operation at very high speeds.

Purpose and range of application:

The tool is intended for cutting, edge bonding, flattening, trenching, and grooving operations in plastics on CNC machining centres.

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