Accupro 12183768 Corner Radius End Mill 3/8 in 4 Flute

Product Description

The ACCUPRO 12183768 is a solid carbide corner radius end mill designed for precision milling in demanding machining environments. With a 3/8-inch diameter, 3-inch length of cut, and a 0.045-inch corner radius, it removes material efficiently while producing a controlled radius at the cutting edge to reduce stress concentrations in finished workpieces. The 6-inch overall length and 40-degree helix angle make it well suited for deep-cavity milling and long-reach applications. An AlTiN coating provides heat and oxidation resistance at elevated cutting speeds. This tool is installed and operated by CNC machinists and tool-and-die professionals working in production and job-shop environments.

This end mill is used in vertical and horizontal CNC machining centers for milling ferrous alloys, hardened steels, titanium, and other abrasive materials. The extra-long length type and single-end configuration make it appropriate for deep-pocket profiling, slotting, and contour milling where extended reach is needed. The centercutting geometry allows direct plunge entry into the workpiece. Right-hand flute direction and right-hand cutting direction are standard for conventional and climb milling setups.

Key Features

• Solid carbide micrograin construction for rigidity and wear resistance in hard-material applications
• AlTiN coating improves tool life at high cutting temperatures and speeds
• 0.045-inch corner radius reduces edge chipping and stress risers in finished parts
• 4-flute, 40-degree helix design balances chip evacuation with surface finish quality
• Centercutting end geometry allows direct plunge milling without a pre-drilled pilot hole
• Extra-long 6-inch OAL with 3-inch LOC supports deep-cavity and long-reach operations

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide corner radius end mill for CNC machining centers accepting a 3/8-inch straight shank toolholder.

Installation Notes

Installation is performed by a qualified CNC machinist or toolroom professional. The machine spindle must be fully stopped and the tool changer disengaged before inserting or removing the end mill from the holder. Use a calibrated torque wrench and appropriate collet or end mill holder to secure the 3/8-inch shank; do not overtighten set screws beyond the holder manufacturer's specification. Inspect the cutting edges and coating condition before each use and replace the tool if chipping or wear is observed.