Accupro 72055080 Corner Radius End Mill 1/4 in 6 Flute

Product Description

The ACCUPRO 72055080 is a solid carbide corner radius end mill designed for high-performance material removal in demanding machining applications. With a 0.25-inch mill diameter, six flutes, and a 0.03-inch corner radius, it delivers smooth finishes and extended tool life on difficult workpieces. The AlTiN+ coating provides thermal resistance and hardness, making this end mill well-suited for cutting high-temperature alloys and other hard materials. It is a single-end, center-cutting tool with right-hand flute direction and right-hand cutting direction. Variable index and variable helix geometry help reduce harmonic chatter during aggressive cuts.

This end mill is intended for use in CNC milling operations where tight tolerances and surface quality matter. Its primary design target is high-temp alloys (material code S), including nickel-based, cobalt-based, and titanium alloys commonly found in aerospace and industrial component machining. The 1-inch length of cut and 3-inch overall length suit it to standard depth profiling, slotting, and finishing passes. Machinists and CNC programmers working in job shops, aerospace suppliers, and precision manufacturing facilities will find this tool appropriate for production and prototype work alike.

Key Features

• AlTiN+ coating for elevated heat resistance and reduced tool wear in hard materials
• Variable helix and variable index geometry reduces chatter and improves surface finish
• Six-flute design increases feed rate capability compared to four-flute alternatives
• Solid carbide construction provides rigidity and dimensional stability
• Center-cutting capability allows plunge entry without a pre-drilled hole
• 0.03-inch corner radius protects cutting edge and reduces stress concentration at corners

Compatibility

Designed for use in standard 1/4-inch collets, end mill holders, and shrink-fit tooling systems. Optimized for machining high-temperature alloys; also applicable to stainless steel and hardened steels depending on cutting parameters.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the tool holder and collet are clean and free of debris before seating the shank. Verify spindle runout meets the tolerance requirements of the application before beginning a cut. Follow machine tool manufacturer guidelines for pull-out force and clamping torque specific to your holder type.