Accupro 12179764 3/4 in 3-flute Solid Carbide Square End Mill

Product Description

The ACCUPRO 12179764 is a solid carbide square end mill designed for precision milling in demanding machining environments. Built from micrograin carbide and coated with a ZrN (zirconium nitride) finish, this tool delivers extended wear resistance in ferrous and non-ferrous applications. It runs a 3/4-inch cutting diameter with a 3-1/4-inch length of cut, making it well suited for deep-pocket and long-reach operations. The 40-degree spiral helix promotes efficient chip evacuation and smooth cutting action. Three flutes balance chip load capacity with surface finish quality. This end mill is centercutting, allowing direct plunge entry without pre-drilling.

This end mill is intended for use in CNC machining centers, vertical mills, and manual mills where long-reach square shoulder or pocket milling is required. The long length-of-cut category (2 inches and above) makes it appropriate for deep cavity work in mold and die, aerospace components, and general production machining. Right-hand cut and right-hand flute configuration matches standard spindle rotation on the vast majority of vertical machining centers. Installation and use are performed by machinists and CNC operators in tool and die, production, and job shop environments.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance
• ZrN coating extends tool life and reduces built-up edge in a range of materials
• 40-degree helix angle promotes aggressive chip evacuation in deep cuts
• 3-1/4-inch length of cut supports deep-pocket and long-reach milling
• Centercutting design enables direct plunge entry
• Right-hand cut and right-hand flute for standard spindle compatibility

Compatibility

Designed as a standard 3/4-inch shank square end mill compatible with ER collets, end mill holders, and shrink-fit toolholders accepting a 3/4-inch shank diameter in vertical machining centers and manual mills.

Installation Notes

Installation is performed by qualified machinists or CNC operators. Ensure the spindle is fully powered down and the machine is in a safe state before loading or changing tooling. Verify the toolholder is clean and free of chips before seating the shank; shank diameter tolerance is -0.0001 to -0.0004 inches for proper fit. Confirm runout with a dial indicator after clamping to minimize tool deflection and premature wear on long-reach cuts.