Accupro 72077126 Corner Radius End Mill 3/8 in 6 Flute

Product Description

The ACCUPRO 72077126 is a solid carbide corner radius end mill designed for high-performance milling in demanding materials. With a 3/8-inch diameter, six flutes, and an AlTiN+ coating, this tool delivers extended tool life and thermal resistance when cutting high-temperature alloys and other difficult workpiece materials. The 0.030-inch corner radius (0.76 mm) reduces stress concentration at the cutting edge, improving surface finish and edge durability. Variable helix and variable index geometry minimize chatter and vibration during aggressive cuts. It is a single-end, right-hand cutting and right-hand flute tool with centercutting capability, making it suitable for plunge, slot, and contour milling operations.

This end mill is engineered for use in aerospace, power generation, and other industries where high-temp alloys such as Inconel, titanium, and similar S-code materials are common. The 1-inch length of cut and 3-inch overall length make it well suited for moderate-depth pocketing and profiling on CNC machining centers. It is intended for use by machinists and CNC programmers working in production and job-shop environments where tool consistency and coating performance matter.

Key Features

• AlTiN+ coating for high-temperature resistance and extended tool life in hard and exotic alloys
• Variable helix and variable index design reduces harmonic chatter during high-feed milling
• 0.030-inch corner radius protects the cutting edge and improves workpiece surface finish
• Six-flute configuration increases feed rate capability compared to four-flute equivalents
• Centercutting geometry allows direct plunge entry without a pre-drilled pilot hole
• Solid carbide construction provides rigidity and wear resistance in abrasive materials

Compatibility

Designed for use in CNC machining centers and milling machines with a 3/8-inch collet or end mill holder. Primary workpiece material classification is high-temp alloy (material code S), including nickel-based and titanium alloys.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Secure the shank fully in a clean, properly sized collet or end mill holder and torque to the holder manufacturer's specification. Ensure the machine spindle is fully stopped and locked out before tool changes. Verify runout with a dial indicator after installation, as excessive runout will accelerate edge wear on carbide tooling.