Accupro 12179073 Square End Mill 9/16 Inch 4 Flute Carbide

Product Description

The ACCUPRO 12179073 is a solid carbide square end mill designed for precision milling operations in metal and hard-material applications. It features a 9/16-inch cutting diameter, a 2-inch length of cut, and a 6-inch overall length, making it well-suited for full-depth slotting, profiling, and peripheral milling. The 4-flute, right-hand spiral configuration with a 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. An nACRo finish provides enhanced wear resistance and thermal protection at the cutting edge. The micrograin carbide substrate delivers the hardness and toughness required in demanding production environments.

This end mill is intended for use in vertical and horizontal machining centers, CNC mills, and manual knee mills where a single-end, centercutting tool is required. Its centercutting capability allows direct plunge entry into workpiece material without a pre-drilled hole. It is a common choice for machinists and toolmakers working in job shops, production facilities, and maintenance departments handling steel, stainless, cast iron, and similar alloys. The 9/16-inch shank diameter matches the cutting diameter, providing a balanced, rigid setup in standard collet chucks and end mill holders.

Key Features

• Solid micrograin carbide construction for hardness and edge retention in ferrous materials
• nACRo coating for improved wear resistance and heat resistance at the cutting edge
• 40-degree helix angle spiral flute promotes efficient chip flow and reduces cutting forces
• Centercutting design allows direct plunge cutting without a pilot hole
• Right-hand cut and right-hand flute configuration for standard spindle rotation
• Mill diameter tolerance of +0.000 / -0.002 inches for controlled fit and finish on profiled surfaces

Compatibility

Designed as a single-end square end mill for use in standard end mill holders, collet chucks, and shrink-fit toolholders accepting a 9/16-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist familiar with rotating cutting tool safety. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool. Seat the shank to the full recommended engagement depth in the holder to prevent pullout under cutting loads. Verify spindle rotation direction matches the right-hand cut designation before starting the program.