Accupro 310168 Square End Mill 5/16 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 310168 is a solid carbide square end mill designed for high-performance material removal in precision machining applications. Built from micrograin carbide stock, it delivers the hardness and edge retention needed for demanding cuts in ferrous and non-ferrous materials. The cutting face carries an AlTiCrN coating, which significantly extends tool life by reducing heat buildup and surface friction at the cutting edge. With a 0.3125-inch (5/16 inch) mill diameter, a 13/16-inch length of cut, and a 38-degree helix angle, this end mill is engineered for efficient chip evacuation and stable cutting at elevated feed rates.

This end mill is suited for use in CNC machining centers and manual mills where a single-end, right-hand cutting tool with a matched 5/16-inch shank is required. It is a strong fit for shops running die and mold work, aerospace components, or general precision parts where tight tolerances and surface finish matter. The variable index configuration helps reduce chatter and harmonic vibration during long cuts, making it effective in both slotting and peripheral milling operations.

Key Features

• AlTiCrN coating for elevated heat resistance and extended tool life
• 38-degree helix angle promotes aggressive chip evacuation and reduced cutting forces
• Micrograin solid carbide construction for superior edge retention and rigidity
• Variable index flute spacing minimizes chatter and vibration during cuts
• Center-cutting capable, allowing direct plunge entry into workpiece material
• Right-hand flute direction and right-hand cutting for standard spindle compatibility

Compatibility

Designed as a standard-shank solid carbide square end mill for use in CNC machining centers and manual milling machines accepting a 5/16-inch collet or end mill holder.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Use a properly sized collet or end mill holder rated for the 5/16-inch shank diameter, and verify runout with a dial indicator before starting a production run. Follow machine manufacturer guidelines for clamping torque on collet nuts to prevent tool pullout.