Accupro 310303 Corner Radius End Mill 1/2 in 4 Flute

Product Description

The ACCUPRO 310303 is a solid carbide corner radius end mill designed for precision milling operations where edge integrity and tool life are critical. Built from micrograin solid carbide and coated with AlCrTiN for heat and wear resistance, this single-end mill features a 1/2 inch diameter, a 1-1/4 inch length of cut, and a 3 inch overall length. The 38-degree helix angle promotes efficient chip evacuation, while the variable index geometry helps reduce chatter and vibration during cuts. Centercutting capability allows direct plunge entry into workpiece material. This tool is intended for use by machinists and toolroom professionals working on CNC or manual milling equipment.

The 310303 is suited for milling ferrous and non-ferrous metals in applications that require a controlled corner radius profile rather than a sharp square corner. Its 4-flute, right-hand cutting configuration makes it appropriate for finishing and semi-finishing passes in slots, pockets, and contoured surfaces. The 0.030 inch corner radius reduces stress concentration at the cutting edge and extends tool life in demanding operations. The 1/2 inch shank diameter fits standard ER and milling chuck toolholders commonly found in production and job shop environments.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance
• AlCrTiN coating provides elevated temperature and oxidation resistance
• 0.030 inch corner radius reduces edge chipping and improves surface finish
• Variable index flute spacing reduces harmonic vibration during milling
• Centercutting design allows direct plunge entry without pre-drilling
• Right-hand spiral flutes with right-hand cutting direction for standard CNC setups

Compatibility

Designed as a single-end corner radius end mill compatible with standard 1/2 inch milling chuck, ER collet, and hydraulic toolholding systems used in CNC machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist following the toolholder manufacturer torque and runout specifications. Ensure the machine spindle is fully stopped and the controller is in a safe state before changing tooling. Verify shank seating depth and runout with a dial indicator before beginning a cut. Follow applicable shop safety procedures and machine guarding requirements during setup and operation.