Accupro 313370 Square End Mill 5/8 in 2 Flute Solid Carbide

Product Description

The ACCUPRO 313370 is a 2-flute square end mill designed for high-performance milling in a wide range of metalworking and machining applications. Built from micrograin solid carbide, it delivers the hardness and wear resistance required for demanding cutting conditions. The tool features a 5/8-inch cutting diameter, a 1-1/4-inch length of cut, and a 45-degree helix angle that promotes efficient chip evacuation and reduced cutting forces. A ZrN (zirconium nitride) coating provides enhanced surface hardness and lubricity, extending tool life in ferrous and non-ferrous materials. Installed by machinists and CNC operators, this end mill suits both manual mills and CNC machining centers.

This end mill is suited for slotting, profiling, and peripheral milling operations in production and job shop environments. The centercutting geometry allows plunge entry, adding versatility for pocketing operations. Right-hand cut and right-hand spiral flute configuration is standard for conventional milling setups. The 5/8-inch shank diameter fits directly into standard ER collets, side-lock holders, and shrink-fit tooling. The 3-1/2-inch overall length provides adequate clearance for most workholding setups without excessive overhang.

Key Features

• Micrograin solid carbide construction for superior hardness and edge retention
• ZrN coating improves wear resistance and reduces built-up edge in non-ferrous and ferrous cuts
• 45-degree helix angle promotes smooth chip flow and reduces cutting pressure
• Centercutting design enables direct plunge entry for pocketing operations
• Right-hand cut, right-hand flute configuration compatible with standard spindle rotation
• Spiral flute geometry for consistent chip evacuation throughout the length of cut

Compatibility

Designed as an OEM-style replacement and standard tooling option for CNC machining centers and manual milling machines accepting a 5/8-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist familiar with toolholder torque procedures and runout verification. Ensure the machine spindle is fully stopped and locked out before inserting or removing the end mill. Verify tool projection and runout with a dial indicator before commencing cuts to prevent premature tool failure. Follow the machine manufacturer and toolholder manufacturer guidelines for proper collet or chuck seating depth.