Three-flute VHM finishing spiral mill with undercut for 3D models – upward chip removal

Index: SR02.16.040.200.16R

Industrial three-flute spiral mill made from solid carbide from the SR02 series, featuring finishing geometry, an undercut body, and upward chip removal. Designed for highly precise 3D finishing machining, shaping of deep reliefs and spatial surfaces in aluminium, plastics, and composites. The arrangement of three cutting edges combined with a right-hand screw line provides high tool rigidity, vibration-free operation, and effectively removes chips from the cutting bottom. Optimised design with an undercut (neck): The narrowing of the body eliminates the risk of tool collision with the material during deep milling, facilitates the free removal of chips, and reduces friction, protecting the workpiece from overheating. The ground shank in H6 accuracy class eliminates radial runout, protecting the machine's drive system.

Key technical parameters and properties:

• Optimised design with undercut (neck): The narrowing of the body eliminates the risk of tool collision with the material during deep milling, facilitates the free removal of chips, and reduces friction, protecting the workpiece from overheating.
• Finishing geometry: Precisely ground cutting edges allow for excellent surface quality without the need for additional finishing processing.
• Three-flute Z3 design: Three cutting edges allow for increased feed rates while maintaining smooth operation, excellent finish quality, and high tool rigidity.
• Positive geometry: Right-hand spiral lifts the chips upwards, protecting the lower edge of the material from scratching.
• Polished flutes: The mirrored surface of the spiral reduces friction and prevents chips from sticking to the tool body.
• Premium solid carbide: The rigid and wear-resistant structure of the solid carbide ensures long tool life and maintains tight dimensional tolerances.
• Optimised shank roughness: Low surface roughness of the shank (Ra ≤ 0.3 µm) prevents slipping in the holder and protects the spindle taper.
• Dynamic balancing in class G2.5: Static-dynamic balancing in accordance with ISO/EN standards (class G2.5) ensures vibration-free operation at very high speeds.

Application and material designation:

The tool is intended for finishing operations on 3D models, deep cutting, and grooving on CNC machining centres.

Machined materials: Aluminium and composites such as CORIAN and HPL.