Accupro 12182036 Corner Radius End Mill 3/8 in 3 Flute

Product Description

The ACCUPRO 12182036 is a single-end corner radius end mill designed for precision milling operations in ferrous and hardened materials. Built from micrograin solid carbide and coated with AlTiN (aluminum titanium nitride), it delivers extended tool life and thermal resistance in high-speed and dry cutting applications. The 0.03-inch corner radius reduces stress concentrations at pocket corners and shoulders. With 3 right-hand spiral flutes and a 40-degree helix angle, the tool provides efficient chip evacuation and smooth cutting action. Centercutting geometry allows direct plunging into workpiece material. This end mill is sized at 3/8 inches in diameter with a 7/8-inch length of cut and a 2.5-inch overall length.

This end mill is suited for milling operations on ferrous alloys, stainless steel, titanium, and hardened steels where a corner radius profile is required. Typical applications include shoulder milling, slot milling, and finishing passes on die and mold components, aerospace parts, and precision machined components. It is installed in CNC machining centers and manual mills with a 3/8-inch collet or end mill holder. The single-end design is standard for toolroom and production floor use.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance
• AlTiN coating for thermal protection and extended tool life in dry or high-speed cutting
• 0.03-inch corner radius reduces edge chipping and stress at milled corners
• 40-degree helix angle promotes efficient chip evacuation
• Centercutting capable — supports direct plunge entry
• Right-hand cut and right-hand flute direction for standard CNC spindle compatibility

Compatibility

Designed for use in 3/8-inch collet chucks or end mill holders on CNC machining centers and manual milling machines requiring a corner radius end mill profile.

Installation Notes

Installation is performed by machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the end mill. Secure to the specified clamping torque for the holder type in use — refer to the tool holder manufacturer guidelines. Confirm runout with a dial indicator before beginning production cuts to avoid premature tool wear or dimensional error.