Accupro 72063852 Corner Radius End Mill 5/16 in 6 Flute

Product Description

The ACCUPRO 72063852 is a solid carbide corner radius end mill designed for high-performance milling in demanding materials. With a 0.3125-inch (5/16 inch) mill diameter and six flutes, it delivers aggressive material removal while maintaining surface finish quality. The AlTiN+ coating provides thermal resistance and extended tool life in abrasive cutting environments. A 0.0100-inch corner radius protects the cutting edge from chipping during interrupted cuts or finish passes. This tool is intended for use by machinists and tooling professionals working in production or job-shop environments.

This end mill is engineered for milling high-temperature alloys (ANSI material code S), including nickel-based superalloys, titanium, and similar difficult-to-machine materials. The variable helix and variable index geometry reduce harmonic vibration and chatter during cut, making it well suited for long-reach or deep-pocket operations where stability is critical. It is a single-end tool with a 3/4-inch length of cut and a 2.5-inch overall length, suitable for CNC vertical and horizontal machining centers.

Key Features

• AlTiN+ coating for high heat resistance and extended tool life in hard and abrasive materials
• Variable helix and variable index flute geometry reduce chatter and improve surface finish
• 0.0100-inch (0.25 mm) corner radius protects cutting edge and extends tool longevity
• Six-flute design increases feed rate capability and material removal rates
• Center-cutting geometry allows plunge entry into workpiece
• Right-hand cut, right-hand flute direction for standard CNC spindle compatibility

Compatibility

Designed as an OEM-style solid carbide end mill for CNC machining centers and manual mills equipped with standard 5/16-inch collet or end mill holders. Primary application is high-temperature alloy (S-code) workpiece materials per ACCUPRO Series HS tooling classification.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the shank. Use a calibrated torque wrench and the appropriate collet or set-screw holder to secure the 0.3125-inch shank. Verify runout with a dial indicator before initiating a cut, as excessive runout will reduce tool life and degrade surface finish.