Accupro 72079833 Corner Radius End Mill 3/8 in 6 Flute

Product Description

The ACCUPRO 72079833 is a solid carbide corner radius end mill designed for high-performance milling in demanding materials. It features a 3/8-inch (0.3750-inch) diameter, 6-flute geometry, and an AlTiN+ coating optimized for heat resistance and tool life. The 0.0100-inch corner radius protects the cutting edge and improves surface finish at part corners. With a 1.750-inch length of cut and 4-inch overall length, this single-end mill suits deep-reach finishing and semi-finishing passes. Variable helix and variable index geometry reduce chatter and harmonic vibration during aggressive cuts. It is used by machinists and tool-and-die professionals running CNC milling centers.

This end mill is engineered primarily for high-temperature alloys (material code S), including nickel-based superalloys, titanium, and cobalt-chrome commonly found in aerospace, power generation, and medical manufacturing applications. The right-hand cutting direction and right-hand flute spiral are standard for conventional CNC mill spindle orientation. The center-cutting design allows plunge entry as well as lateral cuts, adding flexibility during complex profiling operations. No chipbreaker geometry is present, making this tool better suited to finishing and light semi-finishing rather than aggressive roughing.

Key Features

• AlTiN+ coating provides high oxidation resistance and extended tool life in high-temp alloys
• Variable helix and variable index geometry reduce chatter and improve surface finish
• 0.0100-inch (0.25 mm) corner radius protects cutting edges and reduces stress concentration at corners
• Solid carbide construction delivers rigidity and wear resistance in difficult-to-machine materials
• Center-cutting design allows direct plunge milling without a pre-drilled entry hole
• 6-flute configuration increases feed rate potential and improves finish quality on compatible machines

Compatibility

Designed for use in CNC machining centers accepting a 3/8-inch (9.53 mm) straight shank. Primary workpiece material designation is high-temperature alloy (code S). No specific machine model compatibility was provided by the manufacturer for this part number.

Installation Notes

Installation requires a CNC milling machine with a collet, end mill holder, or shrink-fit toolholder sized for a 3/8-inch shank. Ensure the spindle and toolholder are clean and within runout tolerance before seating the tool, as excess runout accelerates edge wear on carbide end mills. Power down and lock out the spindle before loading or unloading. Follow the machine tool manufacturer and cutting tool manufacturer recommendations for starting speeds, feeds, and depth of cut when working with high-temperature alloys, as improper parameters can cause premature tool failure or workpiece damage.