Accupro 313374 Square End Mill 5/8 in 2 Flute Solid Carbide Zrn

Product Description

The ACCUPRO 313374 is a solid carbide square end mill designed for precision milling operations in ferrous and non-ferrous metals. It features a 5/8 inch diameter, a 1-5/8 inch length of cut, and a 45-degree helix angle ground from micrograin carbide stock. The ZrN (zirconium nitride) coating reduces friction and extends tool life in dry or semi-dry cutting conditions. With two right-hand spiral flutes and a right-hand cutting direction, this end mill suits machinists and tool-and-die professionals running CNC mills or manual knee mills where chip evacuation and surface finish are priorities.

This end mill is appropriate for general-purpose profiling, slotting, and peripheral milling in shop environments. The regular-length body and 5/8 inch shank make it compatible with standard ER or end mill holders used in vertical machining centers and manual milling setups. The centercutting geometry allows plunge entry without a pre-drilled hole. It is a single-end tool, meaning it is replaced rather than reversed when the cutting edge is spent.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• ZrN coating reduces heat buildup and extends tool life in dry cutting
• 45-degree helix angle promotes smooth chip flow and reduces cutting forces
• Centercutting design allows direct plunge milling without pilot hole
• Right-hand cut and right-hand flute spiral for standard spindle direction
• Mill diameter tolerance of +0.000 / -0.002 inches for consistent fit in close-tolerance holders

Compatibility

Designed as an OEM-style replacement or standard tooling option for CNC vertical machining centers and manual knee mills accepting 5/8 inch shank end mill holders or ER collet systems.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Power down and lock out the spindle drive before seating or removing the tool from its holder. Ensure the holder bore and shank are clean and free of chips before tightening to prevent runout. Do not exceed the holder manufacturer's recommended torque or clamping specifications for this shank diameter.