Accupro 14556400 Corner Radius End Mill 5/16 in 4 Flute Carbide

Product Description

The ACCUPRO 14556400 is a solid carbide corner radius end mill designed for precision milling operations in metal fabrication and machining environments. It features a 5/16 inch mill diameter, a 3/4 inch length of cut, and a 0.02 inch corner radius that reduces stress concentrations at the cutting edge and extends tool life in demanding applications. The micrograin carbide substrate and AlTiN+ coating provide high hardness and heat resistance, making this end mill well suited for cutting hardened steels, stainless, and high-temperature alloys. It is a single-end, centercutting tool with a right-hand flute direction and right-hand cutting direction. Installation and setup are handled by CNC machinists and tool crib technicians.

This end mill is used in CNC vertical and horizontal machining centers where corner radius profiling, slotting, and peripheral milling are required. The 4-flute, spiral flute geometry and 40-degree helix angle support efficient chip evacuation and smooth surface finish in both roughing and finishing passes. The straight cylindrical shank with a 5/16 inch diameter fits standard collet chucks and end mill holders. It is suited for job shops, tool-and-die operations, and production machining environments working with ferrous and difficult-to-machine materials.

Key Features

• 0.02 inch corner radius reduces edge chipping and improves part surface finish at corners
• AlTiN+ coating delivers high oxidation resistance and extends cutting life in hard and abrasive materials
• Micrograin solid carbide substrate provides rigidity and wear resistance
• 4-flute spiral geometry with 40-degree helix angle promotes efficient chip flow and smooth finish
• Centercutting design allows plunge milling in addition to peripheral and slot cutting
• Single-end configuration with straight cylindrical shank for direct collet or end mill holder mounting

Compatibility

Designed as an OEM-style replacement and standard-stock cutting tool for CNC machining centers accepting 5/16 inch straight cylindrical shank end mill holders or ER collet chucks.

Installation Notes

This tool is installed by CNC machinists or toolroom personnel using appropriate collet chucks or end mill holders rated for the shank diameter. The machine spindle must be fully stopped and the tool holder must be de-energized before changing tooling. Verify runout with a dial indicator after mounting to confirm concentricity within acceptable tolerance. Consult the machine tool manufacturer and cutting tool data for recommended speeds and feeds before use.