Accupro 313244 Square End Mill 7/16in 2 Flute Carbide Zrn

Product Description

The ACCUPRO 313244 is a solid carbide square end mill designed for precision milling operations in metal, alloy, and composite materials. Built from micrograin carbide stock, it offers a 7/16 inch (0.4375 inch) cutting diameter with a 9/16 inch (0.5625 inch) length of cut. The 45-degree helix angle promotes efficient chip evacuation and smooth cutting action. A ZrN (zirconium nitride) coating improves surface hardness and wear resistance, extending tool life in abrasive applications. This is a single-end, stub-length tool with right-hand cut and right-hand flute direction. Machinists and tool-and-die professionals use this end mill in CNC machining centers and manual knee mills alike.

This end mill suits general-purpose slotting, profiling, and peripheral milling on ferrous and non-ferrous metals. The stub-length configuration reduces overhang and improves rigidity, making it a solid choice for applications where chatter control and dimensional accuracy are critical. The centercutting geometry allows direct plunge entry. It is sold as a single unit and is well suited to job shops, production floors, and maintenance machining environments where tight tolerances and consistent tool performance are required.

Key Features

• Micrograin solid carbide construction for hardness and edge retention
• ZrN coating increases wear resistance and reduces heat buildup at the cutting edge
• 45-degree helix angle promotes efficient chip flow and reduces cutting forces
• Centercutting design allows direct plunge milling without a pre-drilled pilot hole
• Stub-length body improves rigidity and minimizes deflection in tight setups
• Right-hand cut and right-hand spiral flute for standard CNC and manual mill use

Compatibility

Designed as a standard shank end mill compatible with 7/16 inch collets, ER collet chucks, and end mill holders used in CNC machining centers and manual vertical mills.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's toolholding specifications. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool. Seat the shank fully into the collet or holder to the recommended insertion depth to prevent pullout under load. Verify runout with a dial indicator before beginning a production cut.