Accupro 314801 Square End Mill 7/16 in 3 Flute Carbide Zrn

Product Description

The ACCUPRO 314801 is a solid carbide square end mill designed for precision milling operations in metal, alloy, and composite workpieces. The 7/16-inch diameter cutter features three flutes with a 37-degree helix angle, a right-hand cutting direction, and a ZrN (zirconium nitride) coating for extended tool life and heat resistance. The micrograin carbide substrate provides edge stability at elevated feeds and speeds. This tool is single-end and centercutting, making it capable of plunge entry. Machinists and toolroom operators use this end mill in CNC machining centers and manual mills for profiling, slotting, and peripheral milling applications.

This end mill suits applications in job shops, production facilities, and toolroom environments where tight tolerances and consistent surface finish are required. The 2-inch length of cut handles moderate-depth passes on ferrous and non-ferrous materials. The ZrN coating performs well in dry or minimal-lubrication cutting conditions. The 4-inch overall length and 7/16-inch straight shank fit standard collet chucks and end mill holders across a wide range of milling machines. Right-hand flute geometry matches conventional right-hand spindle rotation.

Key Features

• 7/16-inch mill diameter with micrograin solid carbide construction for rigidity and wear resistance
• ZrN coating reduces friction and extends tool life in high-speed milling
• 37-degree helix angle promotes efficient chip evacuation and smooth cutting action
• Centercutting design allows direct plunge entry without a pre-drilled hole
• Three-flute geometry balances chip clearance and tool strength
• Right-hand cut and right-hand spiral for use with standard CNC and manual mill spindles

Compatibility

Designed as a standard replacement or direct-use solid carbide square end mill for 7/16-inch collet chucks, ER collet systems, and end mill holders accepting a 7/16-inch straight shank.

Installation Notes

Installation and tool changes must be performed with the machine spindle fully powered down and locked. Ensure the collet or holder bore is clean and free of debris before seating the shank to maintain runout tolerances. Shank diameter tolerance is +0.0001/-0.0004 inches, so inspect the holder for wear that could affect grip concentricity. A licensed machinist or qualified CNC operator should verify speeds, feeds, and depth of cut before engaging the workpiece.