Accupro 12182872 Corner Radius End Mill 3/8 in 4 Flute Carbide

Product Description

The ACCUPRO 12182872 is a single-end corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. Built from micrograin solid carbide, it delivers a 0.375 inch cutting diameter, a 0.01 inch corner radius, and a 0.625 inch length of cut. The bright uncoated finish suits applications where coating interaction with the workpiece or cutting fluid is a concern. With four right-hand spiral flutes and a right-hand cutting direction, this stub-length tool provides rigidity and chip evacuation suited to standard machining centers and CNC mills. Machinists and toolroom professionals install this end mill in collet or end mill holders for profiling, slotting, and finishing passes requiring a controlled corner break.

This end mill fits typical milling operations on machining centers, knee mills, and CNC routers where a stub-length tool is preferred for reduced deflection. The 0.375 inch shank diameter matches standard ER collets and end mill holders common in job shops and production environments. The centercutting design allows plunge entry, expanding its use in pocket milling and ramping applications. It is appropriate for general-purpose profiling work across a range of metalworking applications.

Key Features

• Micrograin solid carbide construction for wear resistance and edge retention
• 0.01 inch corner radius reduces stress concentration at the cutting edge and workpiece corner
• Four right-hand spiral flutes with centercutting capability for plunge and ramp entry
• Stub-length profile improves rigidity and minimizes deflection in standard reach setups
• Bright uncoated finish compatible with a wide range of cutting fluids and workpiece materials
• 0.375 inch shank diameter fits standard collet and end mill holder tooling

Compatibility

Designed as a standard 3/8 inch shank corner radius end mill compatible with ER collet chucks, end mill holders, and milling machine spindles accepting 3/8 inch straight shanks.

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the holder. Seat the shank to the full recommended insertion depth in the collet or holder to prevent pullout during cuts. Verify runout with a dial indicator after tool installation, as excessive runout will accelerate edge wear and degrade corner radius accuracy.