Accupro 12183399 Square End Mill 7/32 in 4 Flute Carbide

Product Description

The ACCUPRO 12183399 is a solid carbide square end mill designed for precision milling in metal, composites, and hard materials. Built from micrograin carbide, it delivers a sharper, more durable cutting edge than standard carbide grades. The 4-flute geometry with a 40-degree helix angle promotes efficient chip evacuation and surface finish quality. With a 7/32-inch (0.2188-inch) cutting diameter and a 1-inch length of cut, this end mill is suited for slotting, profiling, and peripheral milling. The centercutting design allows plunge entry. Machinists and tool-and-die professionals typically install and run this tool in CNC machining centers and manual knee mills.

This end mill fits applications requiring extra-long reach in a small-diameter tool. The 3-inch overall length paired with a 1/4-inch shank diameter allows access to deeper pockets and features where standard-length tools cannot reach. It is appropriate for ferrous and non-ferrous workpiece materials in both production and job-shop environments. The right-hand cut, right-hand spiral flute configuration is the standard orientation for conventional and climb milling on most CNC and manual platforms.

Key Features

• Micrograin solid carbide construction for improved wear resistance and edge retention
• 40-degree helix angle promotes smooth chip flow and reduces cutting forces
• Centercutting geometry allows direct plunge milling without pre-drilling
• 4-flute design balances chip clearance with rigidity for finishing and light roughing
• Extra-long 3-inch OAL provides reach into deep pockets and features
• Uncoated finish suitable for use with cutting fluids in a wide range of materials

Compatibility

Designed as a standard 1/4-inch shank square end mill compatible with any CNC machining center, manual knee mill, or milling machine spindle accepting a 1/4-inch collet or end mill holder.

Installation Notes

A licensed machinist or qualified tool-and-die professional should install this end mill in an appropriate collet or end mill holder rated for the shank diameter. Ensure the machine spindle is fully stopped and locked out before changing tooling. Verify runout at the cutting diameter after setup and confirm the holder grip length does not encroach on the length-of-cut zone. Follow shop-standard speeds and feeds for solid carbide tooling at this diameter.