Accupro 311586 Corner Radius End Mill 3/8 in 5 Flute

Product Description

The ACCUPRO 311586 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and hard materials. Built on the HS series platform, it features a 3/8 inch diameter, a 1-1/2 inch length of cut, and a 4 inch overall length. The AlCrTiN coating delivers high heat resistance and wear protection, making it well suited for demanding cutting environments. With 5 flutes and a variable index geometry, this centercutting tool handles both peripheral and plunge cutting. Material grade is micrograin solid carbide, providing rigidity and edge retention at elevated feed rates.

This end mill is intended for use in CNC machining centers and manual mills where a controlled corner radius is required to reduce stress concentrations in machined features. The 0.030 inch corner radius and right-hand flute direction make it appropriate for finish profiling, slotting, and contour milling in production and tool-and-die environments. It is installed and operated by machinists and CNC programmers working with metal components that require tight dimensional tolerances.

Key Features

• AlCrTiN coating for high-temperature wear resistance
• 5-flute, variable index design improves surface finish and reduces chatter
• Centercutting geometry allows direct plunge entry
• Micrograin solid carbide substrate for superior edge retention
• 0.030 inch corner radius reduces workpiece stress concentration at machined corners
• Right-hand cut, right-hand spiral flute configuration

Compatibility

Designed as an OEM-style solid carbide corner radius end mill for use in standard 3/8 inch collet or end mill holders on CNC machining centers and manual vertical mills.

Installation Notes

Installation requires a clean, properly sized collet or end mill holder to ensure runout is within acceptable limits. Power down and lock out the machine spindle before changing tooling. Inspect the shank and collet bore for chips or damage before seating the tool. Follow machine manufacturer torque specifications for drawbar or collet nut tightening.