Accupro 310910 Corner Radius End Mill 1/2 in 4 Flute Carbide

Product Description

The ACCUPRO 310910 is a solid carbide corner radius end mill designed for precision milling in demanding machining environments. With a 1/2 inch mill diameter and a 0.030 inch corner radius, this tool produces accurate radiused edges while reducing stress concentrations at part corners. The AlCrTiN coating provides high heat resistance and extended tool life in hard-material applications. Four flutes with a 38-degree variable index helix deliver efficient chip evacuation and smooth surface finish. It is installed and operated by machinists and CNC tooling specialists in production and job-shop settings.

This end mill is suited for milling ferrous metals, hardened steels, stainless, and high-temperature alloys in vertical and horizontal machining centers. The extended reach design, with a 3.375 inch reach length and a 0.475 inch neck diameter, allows access to deep pockets and stepped features without tool interference. The 5/8 inch length of cut and 6 inch overall length make it practical for a wide range of profile and pocket milling operations where a full-length tool would create deflection or clearance issues.

Key Features

• AlCrTiN coating for high heat resistance and extended tool life in hard and abrasive materials
• 0.030 inch corner radius reduces edge chipping and part stress concentrations
• Extended reach with 3.375 inch reach length and reduced 0.475 inch neck diameter for deep-pocket access
• Variable index flute spacing minimizes harmonic vibration during aggressive cuts
• Centercutting geometry allows direct plunge entry without a pre-drilled hole
• Micrograin solid carbide substrate provides rigidity and wear resistance

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide corner radius end mill for CNC machining centers and manual mills with 1/2 inch tool holders or collets.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the 1/2 inch shank fully and evenly in the collet or tool holder and torque the retention nut to the tool holder manufacturer's specification. Inspect the AlCrTiN coating and cutting edges before use and do not run a chipped or damaged tool.