Accupro 12183661 Corner Radius End Mill 5/16 in 4 Flute Carbide

Product Description

The ACCUPRO 12183661 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. Built from micrograin solid carbide, it delivers the hardness and edge retention needed for demanding cuts. The tool features a 5/16 inch diameter, a 0.01 inch corner radius, and a 4-flute spiral configuration with right-hand cutting and right-hand flute direction. At 6 inches overall length with a 1-1/2 inch length of cut, this is an extra-long configuration suited for reaching into deep pockets or tall workpiece features. The bright/uncoated finish makes it compatible with a wide range of ferrous and non-ferrous materials.

This end mill fits single-end centercutting applications and is used in CNC machining centers and manual mills for profiling, slotting, and ramping operations. The corner radius geometry reduces stress concentration at the cutting edge and improves surface finish on radiused features. The extra-long overall length is well suited for aerospace, mold-making, die work, and any application requiring extended reach into workpiece cavities. It is installed and operated by machinists and tool-and-die professionals working with CNC or manual milling equipment.

Key Features

• Micrograin solid carbide construction for superior hardness and edge retention
• 0.01 inch corner radius reduces edge chipping and improves workpiece surface finish
• Extra-long 6 inch overall length with 1-1/2 inch length of cut for deep-reach applications
• 4-flute spiral design with right-hand cut and right-hand flute direction
• Centercutting capability allows plunge milling and ramping entry
• Bright/uncoated finish suitable for a broad range of workpiece materials

Compatibility

Designed as an OEM-style solid carbide corner radius end mill suitable for use in standard 5/16 inch collet or end mill holders on CNC machining centers and manual knee mills.

Installation Notes

Installation is performed by qualified machinists using an appropriate collet or end mill holder sized for the 5/16 inch shank diameter. Ensure the tool holder is clean and free of debris before seating the shank to maintain runout tolerances. Power down and lock out the spindle before changing tooling per standard machine tool safety practice. Verify shank engagement depth meets the tool holder manufacturer minimum before beginning any cut.