Accupro 12182893 Corner Radius End Mill 3/8 in 4 Flute

Product Description

The ACCUPRO 12182893 is a single-end corner radius end mill ground from micrograin solid carbide and coated with AlTiN for high-temperature wear resistance. It measures 3/8 inches in diameter with a 5/8 inch length of cut and a 2 inch overall length. The 0.02 inch corner radius reduces stress concentrations at the cutting edge, extending tool life in demanding materials. The 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. This tool is suited for milling operations in ferrous metals, stainless steels, and hardened alloys where heat and abrasion are primary concerns.

The 12182893 is a stub-length end mill intended for use in CNC machining centers and manual knee mills where rigidity and precision are required. Its centercutting geometry allows plunge entry in addition to peripheral and slot milling. The right-hand flute direction and right-hand cutting orientation are standard for conventional and climb milling setups. This tool is used by machinists and toolroom professionals in metalworking, aerospace, mold and die, and general manufacturing environments.

Key Features

• AlTiN coating provides high oxidation resistance for dry and high-speed machining applications
• Micrograin solid carbide substrate delivers hardness and edge retention in difficult-to-machine alloys
• 0.02 inch corner radius reduces chipping and extends corner life compared to sharp-corner end mills
• 40-degree helix angle improves chip flow and reduces cutting forces
• Centercutting design allows direct plunge entry without pre-drilling
• Stub-length construction maximizes rigidity and minimizes deflection

Compatibility

Designed as a standard 3/8 inch shank end mill compatible with ER collet chucks, end mill holders, and shrink-fit toolholding systems accepting a 3/8 inch shank diameter.

Installation Notes

Installation and tool changes must be performed with the machine spindle fully stopped and the control in a safe state. Use a properly sized collet or toolholder matched to the 3/8 inch shank diameter and verify runout before commencing cuts. Inspect the cutting edges for chips or coating damage before each use. Follow the machine tool manufacturer and cutting tool manufacturer feed and speed recommendations for the workpiece material being machined.