Sandvik Coromant 8038725 Corner Radius End Mill 3/4in

Product Description

The SANDVIK COROMANT 8038725 is a solid carbide corner radius end mill from the CoroMill Dura series, designed for high-performance milling in demanding metal-cutting applications. It features a 3/4-inch diameter with a 1/8-inch (0.1250-inch) corner radius, a 1-inch length of cut, and a ZrN (zirconium nitride) coating that improves wear resistance and surface finish on nonferrous and light-alloy workpiece materials. With three flutes, a variable helix, and variable index geometry, the tool reduces chatter and supports stable, efficient cutting. Licensed machinists and CNC operators in job shop, aerospace, and general machining environments typically install and run this tool.

This end mill is suited for milling operations on nonferrous metals and light alloys, consistent with the CoroMill Dura series material grade designation N1BZ. It is a single-end, centercutting tool, meaning it can be used for plunge, slot, and profile milling in one setup. The straight-cylindrical shank fits standard 3/4-inch collet chucks or end mill holders on vertical and horizontal machining centers. The right-hand flute direction and right-hand cutting direction are standard for conventional CNC milling setups.

Key Features

• Solid carbide construction for rigidity and heat resistance in high-speed milling
• ZrN coating for improved wear resistance, especially on nonferrous materials
• Variable helix and variable index geometry reduce vibration and chatter
• Centercutting design allows plunge, slot, and full-profile milling
• 1/8-inch corner radius reduces stress concentration at corners and extends tool life
• CoroMill Dura series, material grade N1BZ, optimized for nonferrous and light-alloy applications

Compatibility

Designed as an OEM-specification solid carbide end mill for use in standard 3/4-inch end mill holders or collet chucks on CNC vertical and horizontal machining centers. No specific machine model compatibility was stated in the product data.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine fully stopped and the spindle locked before securing the tool in the holder. Use a calibrated torque wrench and the appropriate collet or end mill holder specified for a 3/4-inch straight-cylindrical shank. Verify runout with a dial indicator after seating the tool; excessive runout shortens tool life and affects surface finish. Follow the machine manufacturer and tooling manufacturer guidelines for speeds, feeds, and depth of cut before starting the operation.