Accupro 12181277 Square End Mill 9/64 in 2 Flute Carbide

Product Description

The ACCUPRO 12181277 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 9/64 inch (0.1406 inch) cutting diameter with a 1/2 inch length of cut and a 3/16 inch shank diameter, yielding a 2 inch overall length. The AlTiN coating improves heat resistance and extends tool life in ferrous and hardened materials. A 40-degree helix angle promotes efficient chip evacuation, while the micrograin carbide substrate supports rigidity and edge retention at elevated cutting speeds. This end mill is installed and operated by machinists and CNC programmers in job shop and production environments.

This end mill is suited for slot milling, profiling, and peripheral milling in steel, stainless steel, cast iron, and similar hard materials. The centercutting geometry allows plunge entry, making it versatile for closed-pocket work. Its compact diameter makes it well matched to fine-detail features, tight-radius contours, and small-bore slotting tasks where a larger tool cannot reach. The regular length classification keeps deflection low during full-depth cuts within its stated length-of-cut range.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• AlTiN finish for elevated heat resistance and extended tool life in hard materials
• 40-degree helix spiral flute for efficient chip evacuation
• Centercutting design allows direct plunge entry into workpiece
• Right-hand cut, right-hand flute geometry for standard CNC spindle operation
• Mill diameter tolerance of plus 0.000 / minus 0.002 inches for controlled fitment

Compatibility

Designed as a standard straight-shank solid carbide square end mill compatible with conventional collet chucks, end mill holders, and shrink-fit tooling systems that accept a 3/16 inch shank diameter.

Installation Notes

Installation and operation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the shank. Torque the collet or set screw to the holder manufacturer specification. Verify runout at the cutting edge before beginning production cuts, and confirm feed, speed, and depth-of-cut parameters are appropriate for the workpiece material before engaging the tool.