Accupro 12176909 Corner Radius End Mill 0.0781in 4 Flute

Product Description

The ACCUPRO 12176909 is a solid carbide corner radius end mill designed for precision milling operations where edge integrity and surface finish are critical. It features a 0.0781 inch cutting diameter and a 0.015 inch corner radius that reduces chipping at the cutting edge and extends tool life in demanding materials. The AlTiN coating provides thermal resistance and hardness for high-speed cutting in ferrous and hardened steels. With four flutes and a right-hand spiral flute geometry, this tool delivers efficient chip evacuation and a smooth finish. It is used primarily by machinists and tool-and-die professionals on CNC machining centers and manual mills.

This end mill is suited for slotting, profiling, and finishing passes in metalworking applications where a sharp corner must be avoided to prevent stress risers or part cracking. The 0.015 inch corner radius makes it a common choice for mold cavities, die work, and aerospace or precision component machining. The 1/8 inch shank fits standard collets and end mill holders found on most CNC vertical machining centers and high-speed spindles. The centercutting geometry allows plunge entry, adding setup flexibility.

Key Features

• 0.015 inch corner radius reduces edge chipping and improves part surface finish
• AlTiN coating for high thermal resistance and extended tool life in ferrous materials
• Solid micrograin carbide substrate for rigidity and wear resistance
• 4-flute, right-hand spiral design promotes efficient chip evacuation
• Centercutting end geometry allows plunge milling without a pilot hole
• Single-end configuration with 0.25 inch length of cut and 1.5 inch overall length

Compatibility

Designed as a standard replacement or production end mill for CNC vertical machining centers and manual mills using 1/8 inch collets or end mill holders. No specific machine model compatibility was provided in the product data.

Installation Notes

This tool is installed and replaced by machinists or CNC setup technicians. Ensure the spindle is fully stopped and the machine is in an e-stop or powered-down state before changing tooling. Use a properly sized collet or end mill holder rated for the 1/8 inch shank diameter, and torque the retention nut to the holder manufacturer specification. Inspect the collet for wear before seating the tool to avoid runout that can fracture small-diameter carbide end mills.