Accupro 12183197 Corner Radius End Mill 1/8 Inch 4 Flute

Product Description

The ACCUPRO 12183197 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining environments. It features a 1/8 inch (0.1250 inch) mill diameter with a 0.045 inch corner radius, delivering controlled edge geometry that reduces chipping and extends tool life in demanding cuts. The 4-flute, right-hand spiral configuration with a 40-degree helix angle promotes efficient chip evacuation and stable cutting action. A TiCN coating adds surface hardness and wear resistance. This tool is installed and operated by machinists and CNC programmers working on mills and machining centers.

This end mill is suited for profiling, slotting, and contouring operations on ferrous and non-ferrous metals where a corner radius is required to reduce stress concentrations in the workpiece. The extra-long configuration, with a 1.625 inch length of cut and 3 inch overall length, allows access to deeper features and stepped pockets. It is a single-end, centercutting tool, meaning it can plunge directly into the material. Typical applications include die and mold work, aerospace components, and precision part machining where tight tolerances are maintained.

Key Features

• 0.045 inch corner radius reduces stress risers and protects the cutting edge
• TiCN coating provides increased hardness and abrasion resistance over uncoated carbide
• 40-degree helix angle promotes smooth cutting and efficient chip flow
• Centercutting design allows direct plunge entry without a pre-drilled pilot hole
• Micrograin solid carbide substrate supports tight tolerances and rigidity
• Extra-long 3 inch OAL with 1.625 inch LOC for deep-reach applications

Compatibility

Designed as a standard 1/8 inch shank corner radius end mill compatible with collet chucks, ER collet systems, and other standard 1/8 inch toolholders used on CNC mills and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully and evenly in the collet or toolholder to the specified grip length, and torque the collet nut per the toolholder manufacturer's specification. Verify runout with a dial indicator before initiating a cut, particularly given the tight mill diameter tolerance of +0.000000 to -0.002500 inch.