Accupro 12183754 Corner Radius End Mill 3/8 in 4 Flute Ticn

Product Description

The ACCUPRO 12183754 is a solid carbide corner radius end mill designed for precision milling operations in metal and hard-material applications. With a 3/8-inch mill diameter, a 3-inch length of cut, and a 0.01-inch corner radius, this tool delivers controlled edge geometry that reduces stress concentrations at the base of milled features. The TiCN coating improves surface hardness and wear resistance for extended tool life in ferrous and non-ferrous materials. At 6 inches overall length, the extra-long reach makes it suitable for deep-cavity and long-reach milling setups. Machinists and tool and die professionals are the primary users of this type of end mill.

This end mill fits applications where a sharp internal corner is not acceptable and a small radius blend is required at the floor of a milled pocket or slot. The extra-long 6-inch overall length supports setups involving deep molds, dies, or fixtures where standard-length tooling cannot reach the workzone. Its centercutting design allows direct plunge entry without a pre-drilled pilot hole, expanding its usefulness in multi-operation setups on vertical mills and CNC machining centers.

Key Features

• 0.01-inch corner radius reduces stress risers at pocket floors and transitions
• TiCN coating increases wear resistance and surface hardness for longer tool life
• 4-flute, right-hand spiral design provides efficient chip evacuation and smooth finish
• Centercutting capable — allows direct plunge entry without a pilot hole
• Extra-long 6-inch OAL enables deep-cavity and long-reach milling setups
• Micrograin solid carbide construction for rigidity and dimensional stability

Compatibility

Designed as a direct-fit replacement or upgrade for 3/8-inch shank corner radius end mills used in standard ER or end-mill-style collet chucks on vertical mills and CNC machining centers.

Installation Notes

Installation of this end mill requires a properly sized collet or end mill holder matching the 3/8-inch shank diameter. Ensure the machine spindle is fully stopped and locked before changing tooling. Verify runout with a dial indicator after seating the tool to confirm shank engagement is within tolerance. Follow the machine tool manufacturer guidelines for maximum RPM and feed rates for the material being cut.