Accupro 313422 Square End Mill 3/4 in 2 Flute Carbide Zrn

Product Description

The ACCUPRO 313422 is a solid carbide square end mill designed for precision milling operations in metal fabrication and machining environments. It features a 3/4 inch cutting diameter, a 1 inch length of cut, and a 45-degree helix angle with a ZrN (zirconium nitride) coating for extended tool life and improved chip evacuation. The micrograin carbide construction provides rigidity and wear resistance in demanding cutting conditions. This is a single-end, stub-length tool suited for high-speed milling applications where dimensional accuracy and surface finish are critical. Machinists and CNC operators install this tool in standard 3/4 inch tool holders or collet chucks.

The 313422 is used in job shop, production, and tool room environments for slotting, profiling, and peripheral milling operations. It is well-suited for ferrous and non-ferrous materials where a ZrN coating provides lubricity and heat resistance. The right-hand cut and right-hand spiral flute configuration make it compatible with standard CNC machining centers and manual vertical mills. Its stub-length design increases rigidity and reduces deflection in shorter-reach applications.

Key Features

• 3/4 inch cutting diameter with a tight mill diameter tolerance of +0.000 / -0.002 inches
• ZrN coating improves lubricity, heat resistance, and tool life versus uncoated carbide
• 45-degree helix angle promotes efficient chip evacuation and smooth cutting action
• Micrograin solid carbide substrate for superior rigidity and wear resistance
• Center-cutting design allows for direct plunge entry into the workpiece
• Right-hand cut and right-hand flute direction for standard spindle rotation

Compatibility

Designed for use in CNC machining centers and manual mills accepting a 3/4 inch straight shank with a shank diameter tolerance of +0.0001 / -0.0004 inches. Fits standard collet chucks, end mill holders, and shrink-fit tooling systems sized for 3/4 inch shanks.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's tooling guidelines. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Verify that the holder bore and collet are clean and free of chips before seating the shank. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material and coating type.