Sandvik Coromant 7963631 Corner Radius End Mill 20mm 5FL

Product Description

The SANDVIK COROMANT 7963631 is a solid carbide corner radius end mill engineered for high-demand material removal in superalloys and titanium. Part of the CoroMill Plura Series 2F380, it features a 20 mm cutting diameter, a 3 mm corner radius, and five helical flutes with a close pitch configuration. The tool carries a multilayer TiAlSiN PVD coating applied by physical vapor deposition, which supports thermal resistance during aggressive cutting passes. With an extended reach design and coolant-through capability, it is built for deep-pocket and long-reach roughing operations where chip evacuation and tool life are critical. Licensed machinists and CNC programmers working in aerospace and energy component manufacturing are the primary users.

This end mill is suited for single-end roughing operations on workpieces classified under material code S, covering nickel-based superalloys, titanium alloys, and similar difficult-to-machine materials. The extended neck geometry, with a 19 mm neck diameter and 111 mm reach length, allows access into deep features while maintaining rigidity. The Weldon Flat shank interfaces directly with compatible toolholders and is held to an h6 shank diameter tolerance for consistent runout in production environments. Right-hand cutting and right-hand flute direction are standard on this tool.

Key Features

• 20 mm cutting diameter with h10 tolerance for consistent sizing
• 3 mm corner radius reduces stress concentration at the cutting edge
• Five close-pitch helical flutes optimized for roughing in superalloys and titanium
• Multilayer TiAlSiN PVD coating for elevated thermal and wear resistance
• Coolant-through design supports chip flushing in deep-pocket applications
• Extended reach with 19 mm neck diameter and Weldon Flat shank for secure toolholder engagement

Compatibility

Designed for use with compatible toolholders accepting a 20 mm Weldon Flat shank. Intended for CNC milling operations on superalloys and titanium workpieces. Part of the SANDVIK COROMANT CoroMill Plura Series 2F380.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the toolholder is clean and free of debris before seating the shank. Verify Weldon Flat set-screw engagement against the flat to prevent axial pullout under cutting loads. Confirm coolant-through passages in the toolholder are unobstructed before commencing cuts in superalloy or titanium materials.