Accupro 12181526 Square End Mill 11/16 in 2 Flute Carbide

Product Description

The ACCUPRO 12181526 is a solid carbide square end mill designed for precision milling operations in metal fabrication and machining environments. It features an 11/16-inch (0.6875 inch) cutting diameter, a 1-1/2-inch length of cut, and a 3/4-inch shank diameter with a 4-inch overall length. The tool carries an AlTiN finish and a 40-degree helix angle, which promotes chip evacuation and heat resistance during aggressive cuts. Machined from micrograin carbide, it delivers rigidity and edge retention that general-purpose high-speed steel tooling cannot match. This end mill is installed and run by machinists and tool-and-die professionals on CNC mills and manual vertical mills.

This end mill is suited for slotting, profiling, and peripheral milling in ferrous and non-ferrous materials where a tight-tolerance square shoulder is required. The centercutting geometry allows plunge entry without a pre-drilled start hole. Right-hand cut and right-hand flute configuration is standard for conventional CNC spindle setups. The regular-length body keeps deflection low in typical production setups where extended reach is not required.

Key Features

• Solid micrograin carbide construction for edge retention and rigidity
• AlTiN coating improves heat resistance and tool life in ferrous materials
• 40-degree helix angle promotes chip evacuation in spiral flute design
• Centercutting geometry allows direct plunge entry
• Right-hand cut and right-hand flute for standard CNC spindle compatibility
• Mill diameter tolerance of +0.000 / -0.002 inch for consistent fit

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC machining centers and manual vertical mills accepting a 3/4-inch straight shank end mill in an ER, Weldon, or equivalent tool holder.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the spindle is fully stopped and the machine is in an e-stop or locked-out state before changing tooling. Seat the shank fully into the tool holder and torque the set screw or collet nut per the holder manufacturer specification. Confirm runout with a dial indicator before beginning a production run to protect both the tool and the workpiece.