Accupro 14556394 Corner Radius End Mill 5/16in 4 Flute Carbide

Product Description

The ACCUPRO 14556394 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and hard materials. It features a 5/16 inch cutting diameter, a 0.015 inch corner radius, and an AlTiN+ coating that improves heat resistance and extends tool life in high-speed and dry machining environments. With 4 right-hand spiral flutes and a centercutting design, this tool handles slotting, profiling, and plunge operations. The stub-length geometry and straight cylindrical shank provide rigidity and reduced deflection in tight-tolerance applications. Machinists and CNC operators working in job shops, tool rooms, and production environments are the primary users of this end mill.

This end mill suits applications in steel, stainless steel, cast iron, and other hard-to-machine alloys where edge integrity and finish quality are critical. The 1/2 inch length of cut and 2 inch overall length make it well suited for shallow-to-moderate depth passes in pockets, contours, and profiled features. The micrograin carbide substrate supports fine surface finishes and dimensional accuracy in both conventional and climb milling strategies. It is a single-end, non-chipbreaker design from the Series 6/44 lineup.

Key Features

• AlTiN+ coating for improved heat resistance and extended tool life in high-speed machining
• 0.015 inch corner radius reduces stress concentration and improves edge durability at workpiece corners
• Micrograin solid carbide substrate supports tight tolerances and fine surface finishes
• Centercutting design enables direct plunge entry without a pre-drilled hole
• 4 right-hand spiral flutes with right-hand cutting direction for standard CNC mill setups
• Stub-length geometry provides rigidity and minimizes deflection in precision applications

Compatibility

Designed as an OEM-style replacement and standard tooling option for CNC machining centers and manual mills accepting a 5/16 inch straight cylindrical shank.

Installation Notes

This end mill is installed by machinists and CNC operators in standard collet chucks or end mill holders sized for a 5/16 inch shank. Ensure the spindle and tool holder are clean and free of chips before seating the tool. Confirm runout is within acceptable limits before beginning cuts to protect the corner radius and coating. Follow machine manufacturer guidelines and shop safety procedures when changing tooling with the spindle fully stopped and the machine in a safe state.