Accupro 12183316 Corner Radius End Mill 1/2 in 4 Flute Ticn

Product Description

The ACCUPRO 12183316 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. It features a 1/2 inch cutting diameter, a 3 inch length of cut, and a 0.01 inch corner radius that reduces stress concentration at the tool tip and extends part life in high-demand applications. The TiCN coating provides elevated surface hardness and wear resistance compared to uncoated carbide. With four right-hand spiral flutes and a 40-degree helix angle, this tool is suited for professional machinists and tool-and-die shops running CNC machining centers or manual mills requiring extra-long reach capability.

This end mill is intended for use in production and job-shop environments where an extra-long reach is required to access deep pockets, tall workpiece features, or stepped part geometries. The single-end, centercutting design supports both plunge and peripheral milling. The 1/2 inch shank diameter fits standard ER collets, side-lock holders, and shrink-fit tooling. Micrograin carbide substrate supports higher cutting speeds and finer edge geometry retention than standard-grain carbide grades.

Key Features

• 0.01 inch corner radius reduces chipping and stress at the cutting edge
• TiCN coating increases surface hardness and wear life in steel and cast iron
• 40-degree helix angle promotes smooth chip evacuation and reduced cutting forces
• Extra-long 6 inch overall length with 3 inch length of cut for deep-reach applications
• Centercutting geometry allows direct plunge entry without pre-drilling
• Micrograin solid carbide substrate for edge sharpness and dimensional stability

Compatibility

Designed as a direct-fit replacement or production tooling option for CNC machining centers and manual mills accepting a 1/2 inch shank diameter in standard collet, side-lock, or shrink-fit holders.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for runout and tool projection. Ensure the spindle is fully stopped and locked before inserting or removing the tool. Verify holder grip length meets minimum engagement requirements for the shank diameter to prevent pullout under load. Do not exceed the tool manufacturer recommended depth-of-cut or feed-rate parameters for the material being machined.