Accupro 12182823 Square End Mill 9/32 in 4 Flute Carbide

Product Description

The ACCUPRO 12182823 is a solid carbide square end mill designed for precise milling operations in metal fabrication and machining environments. With a 9/32 inch (0.2813 inch) cutting diameter, 4 spiral flutes, and a 40-degree helix angle, this end mill delivers clean, efficient material removal in a compact stub-length profile. The 2 inch overall length and 1/2 inch length of cut make it well suited for tight-clearance work and shallow-pocket applications. It is centercutting, allowing direct plunge entry. Licensed machinists and CNC operators are the primary installers and users of this tool.

This end mill is built for general-purpose milling in steel, aluminum, cast iron, and similar machinable metals. The stub-length configuration provides increased rigidity, reducing deflection during aggressive cuts. The right-hand cut and right-hand spiral flute geometry is standard for conventional CNC machining center setups. Micrograin carbide construction supports higher surface speeds and longer tool life compared to standard carbide grades. It is suitable for production environments, tool rooms, and job shop applications requiring consistent dimensional accuracy.

Key Features

• 9/32 inch (0.2813 inch) cutting diameter with a mill diameter tolerance of +0.000 / -0.002 inches
• Solid micrograin carbide construction for extended tool life at elevated cutting speeds
• 4 spiral flutes at a 40-degree helix angle for efficient chip evacuation and smooth finish
• Centercutting design allows direct plunge milling without a pre-drilled entry hole
• Stub length (2 inch OAL) maximizes rigidity and minimizes deflection in short-reach applications
• Right-hand cut, right-hand flute — compatible with standard CNC spindle rotation

Compatibility

Designed as a standard shank end mill for use in CNC machining centers, manual knee mills, and similar equipment accepting a 5/16 inch shank with a shank diameter tolerance of -0.0001 / -0.0004 inches.

Installation Notes

Install in a compatible collet or end mill holder rated for the 5/16 inch shank diameter. Ensure the machine spindle is fully stopped and locked out before changing tooling. Verify collet runout and holder cleanliness before seating the tool to maintain diameter tolerance. Follow shop-standard speeds and feeds for solid carbide tooling in the workpiece material being machined.