Accupro 12182240 Square End Mill 3/16 in 3 Flute Carbide

Product Description

The ACCUPRO 12182240 is a solid carbide square end mill designed for precision milling in metal fabrication, tool and die, and general machining applications. Built from micrograin solid carbide with an AlTiN (aluminum titanium nitride) finish, this end mill delivers heat resistance and edge retention in demanding cutting conditions. The 3-flute configuration provides a balance between chip evacuation and surface finish, making it well-suited for slotting, profiling, and pocketing operations. The 40-degree helix angle promotes smooth cutting action and efficient chip flow. This is a centercutting, right-hand cut, right-hand flute tool with a spiral flute geometry.

The 12182240 is classified as an extra-long length end mill, giving machinists extended reach for deep-pocket milling, tall-wall profiling, and applications where standard-length tools cannot access the feature. It fits 3/16 inch collets and end mill holders used in vertical machining centers, CNC routers, and manual knee mills. The extra-long overall length makes this tool appropriate for aerospace, mold making, and precision job shop work where reach and rigidity must be balanced carefully.

Key Features

• Micrograin solid carbide construction for rigidity and edge life in ferrous and non-ferrous materials
• AlTiN coating provides elevated heat resistance and extended tool life in dry or semi-dry cutting
• 3-flute design balances chip clearance and finish quality in slotting and profiling cuts
• 40-degree helix angle reduces cutting forces and improves chip evacuation
• Centercutting geometry allows plunge milling directly into workpiece material
• Extra-long length classification enables reach into deep pockets and tall-wall features

Compatibility

Designed as a direct-fit replacement for 3/16 inch shank square end mills in standard ER collet chucks, end mill holders, and shrink-fit tooling systems requiring a 0.1875 inch shank diameter.

Installation Notes

Installation of this end mill should be performed by a qualified machinist following shop safety protocols. Secure the shank fully within the collet or holder to the manufacturer-recommended engagement depth, ensuring the tool does not bottom out or run with insufficient grip length. Due to the extra-long length, minimize tool overhang beyond what the application requires to reduce deflection and chatter. Always verify spindle speed and feed rate parameters against cutting tool manufacturer data before engaging the workpiece.