Accupro 12182641 Corner Radius End Mill 5/8 in 4 Flute Altin

Product Description

The ACCUPRO 12182641 is a solid carbide corner radius end mill designed for precision milling operations in metal-cutting environments. It measures 5/8 inches in diameter with a 1-1/4 inch length of cut and a 0.02 inch corner radius that reduces stress concentration at the cutting edge. The 4-flute, right-hand spiral geometry and 40-degree helix angle promote efficient chip evacuation and smooth surface finishes. An AlTiN coating extends tool life in high-temperature cutting conditions typical of ferrous and hardened materials. Machinists and tool-and-die professionals working on CNC machining centers or manual mills select this end mill for finishing and semi-finishing passes where corner integrity matters.

This end mill suits a wide range of milling applications including profiling, slotting, and contouring in steel, stainless, and cast iron. The centercutting design allows direct plunge entry into the workpiece, expanding its usefulness in pocketing operations. The single-end configuration and 3-1/2 inch overall length make it a practical choice for standard-reach work envelopes on vertical machining centers. Shops running tight-tolerance die work or production milling of hardened tool steels will find the micrograin carbide substrate and AlTiN coating well matched to those demands.

Key Features

• 5/8 inch diameter with 0.02 inch corner radius for reduced edge chipping and improved corner life
• AlTiN coating provides high heat resistance for dry or minimal-lubrication cutting in ferrous materials
• 40-degree helix angle promotes chip flow and reduces cutting forces in deep-cavity work
• Centercutting design allows plunge milling and ramp entry without a pre-drilled hole
• Micrograin solid carbide substrate delivers rigidity and wear resistance in hardened workpieces
• Right-hand cut, right-hand flute spiral for standard CNC spindle compatibility

Compatibility

Designed as a standard-shank replacement or production end mill for CNC machining centers and manual mills accepting a 5/8 inch collet or end mill holder.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and the tool holder is clean and free of chips before seating the shank. Use a properly sized collet or end mill holder torqued per the tooling manufacturer's specifications for the holder type in use. Verify runout with a dial indicator after clamping to confirm concentricity before beginning a cut.