Sandvik Coromant 8037609 Corner Radius End Mill 3/4in

Product Description

The SANDVIK COROMANT 8037609 is a solid carbide corner radius end mill from the CoroMill Dura series, designed for high-performance milling in demanding metalworking applications. It features a 3/4-inch diameter, a 1-5/8-inch length of cut (0.875 inches decimal), and a 0.06-inch corner radius that reduces stress concentrations at the cutting edge and extends tool life on profiling and finishing passes. The three-flute geometry with a 35-degree variable helix and variable index pitch reduces chatter and improves chip evacuation. A ZrN (zirconium nitride) coating provides wear resistance and lubricity, particularly in non-ferrous and aluminum alloys. Machinists and CNC programmers working in job shops or production facilities will recognize this tool as a high-geometry finishing and semi-finishing end mill suited for rigid setups.

This end mill is suited for milling operations requiring a radius corner profile on component features such as floors, walls, and blended transitions. The CoroMill Dura series targets non-ferrous materials and light alloys, indicated by the N1BZ material grade designation. It is a single-end, centercutting tool, allowing plunge entry as well as conventional profiling. Right-hand flute direction and right-hand cutting make it compatible with standard CNC machining center spindle configurations. The straight cylindrical shank at 3/4 inch diameter fits standard collet chucks and end mill holders without special adapters.

Key Features

• 3/4-inch cutting diameter with matching 3/4-inch straight cylindrical shank for direct holder compatibility
• 0.06-inch corner radius reduces edge chipping and produces consistent blend radii on finished surfaces
• Variable helix and variable index design suppresses regenerative chatter at higher feeds and depths
• ZrN coating improves wear resistance and reduces built-up edge in non-ferrous and light alloy materials
• Centercutting geometry allows plunge, ramp, and helical interpolation entry
• Three-flute spiral configuration balances chip evacuation with rigidity in the 3/4-inch diameter class

Compatibility

Part of the SANDVIK COROMANT CoroMill Dura series, material grade N1BZ, designed for use in non-ferrous and light alloy milling applications. Compatible with standard 3/4-inch collet chucks, shrink-fit holders, and end mill holders used on CNC vertical and horizontal machining centers.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in an e-stop or lockout-tagout state before inserting or removing the tool. Set tool length offset and diameter compensation in the control before cutting. Follow the toolholder manufacturer torque specifications for the collet nut or clamping mechanism — do not rely on generic values.