Accupro 313054 Corner Radius End Mill 1/4 in Solid Carbide

Product Description

The ACCUPRO 313054 is a solid carbide, corner radius end mill designed for precision milling in metalworking and machining applications. Built from micrograin solid carbide and coated with zirconium nitride (ZrN), it delivers hardness and wear resistance suited for ferrous and non-ferrous materials. The corner radius end geometry reduces stress concentrations at the cutting edge, extending tool life compared to sharp-corner designs. With a 1/4 inch diameter, 3/4 inch length of cut, and a 45-degree helix angle, this end mill is well suited for slotting, profiling, and peripheral milling operations on CNC machining centers and manual knee mills.

This end mill is used in job shops, production machining, and toolroom environments where tight tolerances and consistent surface finish are required. The single-end, centercutting design allows direct plunge entry into the workpiece, making it practical for pocket milling without pre-drilling. Its 1/4 inch shank fits standard collet chucks and end mill holders common in both vertical and horizontal machining setups. Machinists working with aluminum alloys, steel, and similar materials will find the ZrN coating effective at reducing built-up edge and extending run time between tool changes.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance
• ZrN coating reduces friction and extends tool life in ferrous and non-ferrous cuts
• 0.060 inch corner radius reduces edge chipping and stress concentration
• Centercutting design enables direct plunge milling without pre-drilling
• 45-degree right-hand spiral flute promotes efficient chip evacuation
• 2-flute configuration balances chip clearance and cutting edge strength

Compatibility

Designed as an OEM-style replacement or direct-use cutting tool for standard 1/4 inch collet chucks and end mill holders used in CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist. Ensure the machine spindle is fully stopped and locked out before loading or changing tooling. Seat the shank fully into a clean, properly sized collet or end mill holder and torque the retention mechanism per the toolholder manufacturer specifications. Inspect the cutting edges for chips or wear before each use and verify runout with a dial indicator when tolerances are critical.