Accupro 12183067 Corner Radius End Mill 3/8 in 4 Flute Altin

Product Description

The ACCUPRO 12183067 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and hard materials. It features a 3/8 inch mill diameter, a 1-1/8 inch length of cut, and a 0.01 inch corner radius that reduces stress concentration at the cutting edge and extends tool life in demanding applications. The AlTiN coating improves heat resistance and wear performance at elevated cutting temperatures. With 4 right-hand spiral flutes and a 40-degree helix angle, this tool is built for efficient chip evacuation and smooth surface finishes. It is installed and operated by machinists and CNC programmers working in job shops, production machining, and toolroom environments.

This end mill is suited for milling slots, pockets, and contours in ferrous alloys, hardened steels, stainless steel, and similar materials where corner strength and surface finish are critical. The single-end, centercutting design allows plunge entry and full slot milling. The long flute length and 3 inch overall length accommodate deeper reach applications without requiring extended-reach tooling in many setups. Typical use cases include die and mold work, aerospace component machining, and general CNC production runs.

Key Features

• 0.01 inch corner radius reduces edge chipping and improves workpiece corner integrity
• AlTiN coating provides high heat resistance for dry and high-speed cutting in ferrous materials
• 4 right-hand spiral flutes with 40-degree helix for efficient chip evacuation and surface finish
• Centercutting design enables plunge milling and full slot entry
• Micrograin solid carbide substrate delivers rigidity and edge retention
• Single-end configuration with 3/8 inch shank fits standard ER and set-screw toolholders

Compatibility

Designed as an OEM-style replacement or standard toolroom end mill compatible with any CNC machining center or manual mill equipped with a 3/8 inch tool holding system.

Installation Notes

Installation requires a 3/8 inch collet, ER chuck, or set-screw holder rated for the intended spindle RPM and feed load. Ensure the tool is fully seated to the recommended gauge length before torquing the holder. Inspect the collet or chuck for runout before starting a new program, as excessive runout accelerates edge wear on carbide tooling. Follow machine manufacturer guidelines and applicable shop safety procedures when setting or changing rotating cutting tools.