Accupro 14981768 1/16 in 4-flute Carbide Square End Mill

Product Description

The ACCUPRO 14981768 is a solid carbide square end mill designed for precision milling in steel and other ferrous materials. Built to Series 524 long-series specifications, it carries a 1/16 inch (1.59 mm) mill diameter with four flutes and an AlTiN coating that improves heat resistance and extends tool life in demanding cutting conditions. The 30-degree helix angle promotes efficient chip evacuation and smooth cutting action. This is a single-end, centercutting tool, meaning it can plunge directly into a workpiece as well as cut along the periphery. Machinists and tool-and-die professionals working on CNC mills, VMCs, and manual knee mills will find this tool suited to fine-detail and tight-tolerance work.

This end mill is configured for right-hand cutting with a right-hand spiral flute and a straight 1/8 inch shank. The long-series overall length of 2.5 inches provides extended reach into deep pockets, slots, and contoured features where a standard-length tool cannot access. The 5/16 inch length of cut accommodates moderate depth-of-cut passes while maintaining rigidity at this small diameter. It is primarily rated for steel (ISO material code P) and is well suited for mold work, die work, and general-purpose ferrous machining where fine feature definition is required.

Key Features

• Solid carbide construction for rigidity and wear resistance at 1/16 inch diameter
• AlTiN coating enhances heat resistance and reduces friction during dry or semi-dry cutting in steel
• Four-flute design improves surface finish and feed-rate capability compared to two-flute alternatives
• Centercutting geometry allows direct plunge entry without a pre-drilled pilot hole
• 30-degree right-hand spiral helix promotes efficient chip flow out of the cut zone
• Long-series length of 2.5 inches provides extended reach for deep-pocket and contour work

Compatibility

Designed as a fractional-inch series replacement and general-purpose end mill for CNC and manual milling machines accepting a 1/8 inch straight shank; primary workpiece material rating is steel (ISO code P).

Installation Notes

Install this end mill in a collet or end-mill holder rated for 1/8 inch straight shanks; ensure the holder is clean and free of debris before seating the tool. Power down and lock out the spindle before any tool change. At 1/16 inch diameter, this tool is sensitive to runout — verify holder and spindle runout with a dial indicator before cutting to avoid premature breakage. Feed and speed parameters should be established from the manufacturer's published data for AlTiN-coated carbide in the target workpiece material.