Accupro 12179628 Corner Radius End Mill 1/4 in 3 Flute Carbide

Product Description

The ACCUPRO 12179628 is a solid carbide corner radius end mill designed for precision milling operations in metal cutting and machining applications. It features a 1/4 inch cutting diameter and a 0.045 inch corner radius that reduces stress concentrations at the base of a cut, extending tool life and improving surface finish. With 3 flutes and a 30-degree helix angle, it balances chip evacuation with rigidity. The ZrN (zirconium nitride) coating improves wear resistance and reduces friction at the cutting edge. This tool is centercutting, allowing direct plunge entry into the workpiece. It is sized for use in standard CNC machining centers and manual mills equipped with 1/4 inch collets or end mill holders.

This corner radius end mill suits general-purpose finishing and semi-finishing passes in ferrous and non-ferrous materials. The regular length profile and 3/4 inch length of cut make it appropriate for shallow-to-medium depth pocketing, contouring, and profiling work. The right-hand cutting direction and right-hand flute direction are standard for conventional CNC milling setups. Machinists and CNC operators in job shops, tool rooms, and production environments are the typical end users for this tool.

Key Features

• 0.045 inch corner radius reduces edge chipping and stress risers in finished pockets
• ZrN coating improves hardness, wear resistance, and tool longevity
• Centercutting design allows direct plunge milling without a pilot hole
• 30-degree helix angle promotes smooth chip flow and reduces cutting force
• Solid carbide construction provides rigidity and dimensional stability
• Right-hand cut and right-hand flute direction for standard CNC compatibility

Compatibility

Designed as a standard replacement or stock cutting tool for 1/4 inch collet systems and end mill holders used in CNC machining centers and manual vertical mills with regular-length end mill capacity.

Installation Notes

Installation of end mills should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully powered down and locked out before changing tooling. Seat the shank fully in the collet or holder to the recommended engagement depth and torque the retention hardware per the tool holder manufacturer specifications. Verify runout with a dial indicator before beginning a production cut.