Spiral router bit for acrylic & plastics VHM Z1 D5 I15 L60 S5 RH Finishing negative

Single-Edge Spiral Milling Cutter VHM for PLEXI with Downward Chip Removal – Ideal Top Edge

Index: ST51.05.015.060.05R

Industrial single-edge spiral milling cutter made from solid cemented carbide (VHM) with negative geometry (downward chip removal). Designed for precise cutting, edge jointing, and leveling, as well as grooving and slotting in plexiglass, plastics, and composites on CNC machines and vertical milling machines. The left-handed spiral line presses the workpiece to the table and directs the chips downwards, making it ideal for machining small parts and flexible plastic sheets. The special finishing geometry with a single edge (Z1) combined with a polished chip groove effectively prevents sticking and melting of the material, ensuring a perfectly finished upper edge. The ground shank in accuracy class H6 eliminates radial runout, protecting the machine's drive system.

Structural Advantages and Technical Properties:

• Single-Edge Z1 Design (Negative): The single cutting edge efficiently directs the chips downwards, stabilising the material on the work table.
• Polished Chip Groove: The mirror-like surface of the spiral counteracts chip sticking and re-welding to the body.
• Finishing Blade Geometry: Precisely ground edge ensures perfect edge quality without fraying and damage to the upper surface.
• Monolith of Cemented Carbide (VHM): High structural rigidity of VHM eliminates vibrations and maintains dimensional stability.
• Low Shank Roughness (Ra ≤ 0.3 µm): Ground surface of the shank protects the holder and spindle cone from wear and prevents slipping.
• Dynamic Balancing in Class G2.5: Balancing in accordance with ISO standards guarantees vibration-free operation at very high speeds.

Intended Use and Application Range:

The tool is intended for cutting, edge jointing, and leveling operations, as well as grooving and slotting in plastics on CNC machining centres.

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