Sandvik Coromant 8037570 Corner Radius End Mill 3/8 in

Product Description

The SANDVIK COROMANT 8037570 is a solid carbide corner radius end mill from the CoroMill Dura series, designed for precision milling in metalworking and machining applications. It features a 3/8 inch diameter with a 1/8 inch (0.1250 inch) corner radius and a 1-1/2 inch length of cut. The ZrN (zirconium nitride) coating improves wear resistance and reduces friction during cutting. With three flutes, a 35-degree variable helix, and variable index geometry, this end mill delivers consistent chip evacuation and reduced chatter. It is a single-end, centercutting design, allowing plunge entry as well as peripheral and slot milling. Licensed machinists and CNC operators install this tool in production and job-shop environments.

This end mill is suited for milling non-ferrous metals, aluminum alloys, and similar materials classified under material grade N1BZ. The centercutting capability supports ramping, helical interpolation, and direct plunge operations. The straight cylindrical shank at 3/8 inch diameter fits standard ER and side-lock toolholders commonly used on CNC machining centers and manual mills. The 3-1/2 inch overall length provides clearance for moderate-depth fixtures and part features without sacrificing rigidity. It is a solid choice for finishing and semi-finishing passes where corner geometry accuracy is critical.

Key Features

• Solid carbide construction for rigidity and extended tool life
• ZrN coating reduces friction and improves wear resistance on non-ferrous materials
• Variable helix and variable index geometry minimize chatter and vibration
• Centercutting design allows plunge, ramp, and helical entry
• 3-flute configuration balances chip evacuation with core strength
• Right-hand cut, right-hand spiral flute direction for standard CNC spindle compatibility

Compatibility

Part of the SANDVIK COROMANT CoroMill Dura series. Fits 3/8 inch straight-cylindrical toolholders including ER collet chucks and side-lock holders used on CNC machining centers and manual milling machines. Intended for material grade N1BZ applications, primarily non-ferrous metals and aluminum.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing the end mill from the toolholder. Seat the shank to the correct insertion depth per toolholder manufacturer specifications and torque the retention screw to toolholder specifications. Verify runout with a dial indicator before beginning a production cut to confirm proper seating and minimize premature wear.