Accupro 12183342 Corner Radius End Mill 5/8 in 4 Flute Carbide

Product Description

The ACCUPRO 12183342 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. With a 5/8-inch mill diameter, 3-inch length of cut, and a 0.045-inch corner radius, this tool reduces stress concentration at corners and extends workpiece and tool life compared to sharp-corner end mills. The micrograin carbide construction provides rigidity and wear resistance suited to high-speed, high-feed applications. With four flutes and a right-hand spiral flute geometry, it is built for general profiling, slotting, and contouring work on CNC machining centers and manual mills operated by machinists and tooling professionals.

This end mill is suited for production and job-shop environments where extended reach and a long length of cut are required. The 6-inch overall length and extra-long length classification make it appropriate for deep-pocket milling and tall workpiece features where a standard-length tool cannot reach. The single-end, centercutting design allows plunge entry as well as peripheral cuts. It is typically installed in collet chucks, end mill holders, or shrink-fit toolholders on CNC mills and machining centers.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance in demanding milling applications
• 0.045-inch corner radius reduces notching and corner chipping on the workpiece
• 4-flute, right-hand spiral geometry optimized for profiling, contouring, and slotting
• Extra-long classification with 6-inch overall length for deep-pocket and tall-feature applications
• Centercutting design permits direct plunge entry without pre-drilling
• Bright/uncoated finish suitable for use with cutting fluids across a range of workpiece materials

Compatibility

Designed as an OEM-style replacement or direct-use tool for CNC machining centers and manual mills accepting a 5/8-inch shank diameter in standard collet, end mill holder, or shrink-fit toolholding systems.

Installation Notes

Installation should be performed by a qualified machinist following the toolholder manufacturer torque and runout specifications. Ensure the shank is fully seated in the toolholder to the minimum engagement depth before tightening. Verify spindle and toolholder are free of chips or debris prior to installation. Always confirm the machine is in an E-stop or powered-down state before changing tooling.