Accupro 311715 Corner Radius End Mill 5/8 in 5 Flute Carbide

Product Description

The ACCUPRO 311715 is a solid carbide corner radius end mill designed for high-performance milling applications in ferrous and hardened materials. It features a 5/8-inch mill diameter, a 1-1/4-inch length of cut, and a 38-degree helix angle that promotes efficient chip evacuation and smooth cutting action. The five-flute, right-hand spiral geometry with a variable index delivers reduced chatter and improved surface finish. An AlCrTiN coating provides thermal resistance and extended tool life in demanding cutting environments. The centercutting design allows plunge entry, giving machinists added flexibility in toolpath programming.

This end mill is suited for finish and semi-finish milling operations in CNC machining centers handling alloy steels, stainless steels, hardened tool steels, and similar materials. The 0.060-inch corner radius reduces stress concentration at the cutting edge, making it appropriate for slotting, profiling, and peripheral milling where edge chipping is a concern. The 5/8-inch shank diameter fits standard ER or end mill holders commonly found in production and job shop environments. With a 3-1/2-inch overall length, it handles moderate-reach applications without sacrificing rigidity.

Key Features

• 5/8-inch mill diameter with matching 5/8-inch shank for concentric tool holding
• Five-flute solid micrograin carbide construction for rigidity and wear resistance
• AlCrTiN coating for high-temperature performance and extended tool life
• 0.060-inch corner radius reduces edge chipping in profiling and slotting
• Variable index flute spacing minimizes vibration and chatter
• Centercutting geometry allows direct plunge entry

Compatibility

Designed as an OEM-style replacement and standard production end mill compatible with 5/8-inch bore end mill holders, collet chucks, and ER tooling systems used in CNC vertical and horizontal machining centers.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in an e-stop or lockout state before changing tooling. Seat the shank to the full recommended gauge length in the holder and torque the retention hardware per the toolholder manufacturer specifications. Inspect the corner radius for chips or coating damage before use, and verify runout with a dial indicator after installation.