Accupro 12181228 Square End Mill 3/64 in 2 Flute Carbide

Product Description

The ACCUPRO 12181228 is a solid carbide square end mill designed for precision milling in tight-tolerance machining applications. With a 3/64 inch (0.0469 inch) cutting diameter and a 9/64 inch (0.1406 inch) length of cut, this tool is built for small-feature work including slots, pockets, and profiling cuts on hardened or abrasive materials. The micrograin carbide substrate provides rigidity and wear resistance, while the TiCN coating reduces friction and extends tool life in ferrous and non-ferrous materials. A 30-degree helix angle promotes smooth chip evacuation and reduces cutting forces on the workpiece.

This end mill is suited for CNC machining centers and manual mills where fine detail work is required. It is commonly used in mold and die work, precision component manufacturing, and prototype machining where small diameters and accurate wall geometry are critical. The 1/8 inch shank diameter fits standard collets and toolholders used on most benchtop and full-size milling machines. Its 1-1/2 inch overall length keeps deflection to a minimum when working in shallow features.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention in demanding materials
• TiCN (Titanium Carbonitride) coating reduces friction and improves wear resistance
• 2-flute spiral design with 30-degree helix angle for efficient chip evacuation in small slots and pockets
• Centercutting geometry allows plunge entry into the workpiece
• Right-hand cut and right-hand flute configuration for standard CNC and manual mill setups
• Mill diameter tolerance of +0.0002/-0.0008 inch for tight-tolerance feature work

Compatibility

Designed for use in standard 1/8 inch collets and toolholders on CNC machining centers and manual milling machines. Suited as a direct replacement or working tool for small-diameter square end mill applications requiring a 3/64 inch cutting diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and the toolholder is clean and free of debris before mounting the end mill. Secure the shank fully within the collet to the recommended engagement depth to minimize runout and prevent tool pull-out during cutting. At this diameter, even slight runout can significantly reduce tool life and cut quality, so verify collet condition and concentricity before use.