Accupro 313274 Square End Mill 1/2 in 2 Flute Carbide Zrn

Product Description

The ACCUPRO 313274 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. Built from micrograin carbide and coated with zirconium nitride (ZrN), this tool delivers hardness and wear resistance suited to ferrous and non-ferrous materials. The 1/2 inch cutting diameter pairs with a 5/8 inch length of cut and a 45-degree helix angle that promotes efficient chip evacuation and reduces cutting forces. Stub-length construction provides added rigidity, minimizing deflection during aggressive cuts. Machinists and CNC operators working in job shops, tool rooms, and production environments are the primary users of this end mill.

This end mill is intended for milling slots, profiles, and pockets in a wide range of materials. The right-hand cutting direction and right-hand spiral flute geometry are standard for use in conventional CNC machining centers and manual mills. The center-cutting capability allows direct plunge entry into workpiece materials. With a 1/2 inch shank diameter matching the cutting diameter, it seats directly in standard ER or end mill holders without a reducer. This is a single-end tool rated for stub-length reach applications where rigidity is prioritized over extended projection.

Key Features

• Micrograin solid carbide construction for hardness and edge retention
• ZrN coating improves wear resistance and reduces built-up edge on coated surfaces
• 45-degree helix angle promotes smooth cutting action and effective chip evacuation
• Center-cutting design allows direct plunge milling
• Stub-length body maximizes rigidity and minimizes deflection
• Right-hand cut and right-hand flute spiral — compatible with standard spindle rotation

Compatibility

Designed as an OEM-style replacement or standard tooling selection for CNC machining centers and manual mills using 1/2 inch end mill or collet-style toolholders.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and the tool holder is clean and free of chips or debris before seating the end mill. Torque the retention screw or collet nut to the toolholder specification. Verify runout with a dial indicator before committing to a full-depth cut.