Accupro 12178909 Square End Mill 3/16 in 3 Flute Carbide

Product Description

The ACCUPRO 12178909 is a solid carbide square end mill designed for precision milling in metal cutting and machining applications. Built from micrograin carbide stock with a nACRo finish, this tool delivers consistent performance in demanding cutting environments. The 3-flute, spiral flute geometry with a 40-degree helix angle promotes efficient chip evacuation and reduces heat buildup at the cutting edge. At 0.1875 inches in diameter with a 0.3750-inch length of cut, this is a stub-length tool intended for work requiring high rigidity and minimal deflection. Centercutting capability allows plunge milling as well as standard peripheral cuts. Installation and use are handled by machinists and CNC tooling professionals.

This end mill suits light-to-medium duty milling operations in a CNC machining center or manual mill. The stub-length configuration provides added rigidity, making it well-suited for slotting, profiling, and pocket milling in steel, stainless, aluminum, and similar workpiece materials where tool deflection must be minimized. The right-hand cut and right-hand flute orientation are standard for conventional spindle setups. The 3/16-inch shank diameter matches the cutting diameter, allowing direct collet or end mill holder mounting without reduction.

Key Features

• Solid micrograin carbide construction for wear resistance and edge retention
• nACRo finish for improved lubricity and extended tool life in ferrous materials
• 40-degree helix angle with spiral flute geometry for efficient chip evacuation
• Centercutting design enables plunge entry into workpiece material
• Stub-length geometry maximizes rigidity and reduces deflection in tight setups
• Right-hand cut, right-hand flute for standard CNC and manual mill spindle compatibility

Compatibility

Designed as a standard 3/16-inch shank square end mill compatible with collet chucks, ER collets, and end mill holders sized for 3/16-inch shanks in CNC machining centers and manual knee mills.

Installation Notes

Installation is performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the shank in a properly sized collet or end mill holder and verify runout before committing to a cut. Do not exceed the rated length of cut or use the tool as a boring bar or reamer.