Accupro 12178786 Square End Mill 15/64 in 2 Flute Carbide

Product Description

The ACCUPRO 12178786 is a solid carbide square end mill designed for precision milling operations across a range of ferrous and non-ferrous materials. With a 15/64 inch (0.2344 inch) cutting diameter and a 3/8 inch length of cut, this single-end tool delivers clean, square-shoulder cuts in tight tolerances. The 40-degree helix angle promotes efficient chip evacuation and reduces cutting forces. An nACRo coating improves heat resistance and extends tool life in abrasive or high-speed applications. Machinists and toolroom technicians working with CNC mills or manual vertical mills select this end mill for detail work, slotting, and profiling.

This end mill is suited for small-diameter milling work in production and job-shop environments. Its 1/4 inch shank diameter fits standard collets and end mill holders found on most CNC machining centers and manual knee mills. The 2 inch overall length keeps the tool compact and rigid, minimizing deflection during cuts. Right-hand cutting and right-hand flute direction are standard for conventional and climb milling setups. The micrograin carbide substrate supports cutting in steel, stainless, cast iron, aluminum, and similar materials.

Key Features

• 15/64 inch (0.2344 inch) cutting diameter with a tight tolerance of +0.000 / -0.002 inches
• Solid micrograin carbide construction for rigidity and wear resistance
• nACRo coating for extended tool life in high-temperature cutting conditions
• 40-degree helix angle promotes efficient chip evacuation and smooth cutting action
• Center-cutting geometry allows plunge entry into workpieces
• Right-hand cut and right-hand spiral flutes for standard milling setups

Compatibility

Designed for use in standard 1/4 inch collets and end mill holders on CNC machining centers and manual milling machines. Shank diameter tolerance is -0.0001 / -0.0004 inches for consistent, secure tool holding.

Installation Notes

Installation and tool changes should be performed by a qualified machinist or toolroom technician with the machine fully powered down and spindle locked. Inspect the collet or end mill holder for wear or contamination before seating the tool. Torque the collet nut to the machine manufacturer specification using the appropriate spanner wrench. Verify runout with a dial indicator before beginning a cut, particularly in tight-tolerance applications.