Accupro 12179354 Corner Radius End Mill 7/16 in 3 Flute

Product Description

The ACCUPRO 12179354 is a solid carbide corner radius end mill designed for precision milling in ferrous and hard materials. It features a 7/16 inch (0.4375 inch) cutting diameter, a 0.02 inch corner radius, and three right-hand spiral flutes with a 40-degree helix angle. The tool is coated with AlTiN (aluminum titanium nitride), which provides thermal resistance and extended tool life in high-speed and dry cutting applications. Machinists and CNC operators use this end mill for profiling, slotting, and contouring operations where a controlled corner radius is required to reduce stress concentration in the workpiece.

This end mill is suited for use on CNC machining centers in job shops, production facilities, and toolroom environments. The single-end, centercutting design allows plunge entry as well as peripheral cutting. The 9/16 inch length of cut and 7/16 inch shank diameter make it appropriate for shallow-to-moderate depth passes in steel, stainless steel, titanium, and other hard alloys. The micrograin carbide substrate supports rigidity and wear resistance at elevated cutting speeds.

Key Features

• AlTiN coating for high-heat resistance in ferrous and exotic alloy machining
• Micrograin solid carbide substrate for rigidity and edge retention
• 0.02 inch corner radius reduces stress risers and improves surface finish at floor-wall transitions
• 40-degree helix angle promotes smooth chip evacuation and reduced cutting forces
• Centercutting geometry allows direct plunge entry without a pre-drilled hole
• Right-hand cut, right-hand flute spiral — compatible with standard CNC spindle rotation

Compatibility

Designed as an OEM-style solid carbide corner radius end mill suitable for CNC machining centers and manual mills accepting a 7/16 inch straight shank.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the spindle is fully stopped and the machine is in an appropriate safe state before changing tooling. Secure the shank in a collet or end mill holder to the manufacturer-specified clamping depth, and verify runout with a dial indicator before commencing cuts. Do not exceed the rated length of cut when programming depth-of-pass values.