Accupro 12176620 Square End Mill 7/16 in 3 Flute Carbide

Product Description

The ACCUPRO 12176620 is a solid carbide square end mill designed for precision milling in ferrous and non-ferrous metals. It features a 7/16 inch cutting diameter, a 9/16 inch length of cut, and a 3-flute spiral configuration with a 40-degree helix angle. The AlTiN coating provides heat and wear resistance, making it well suited for higher-speed dry or semi-dry cutting operations. The stub-length profile keeps deflection low during aggressive side-milling passes. This tool is installed and operated by machinists, tool-and-die makers, and CNC machine operators in production and job-shop environments.

This end mill is suited for CNC machining centers and manual mills where a short, rigid tool is needed for slotting, profiling, and pocket milling in harder materials. The centercutting design allows plunge entry without a pre-drilled pilot hole. Right-hand cut and right-hand flute geometry follow standard milling conventions for most vertical machining center setups. The micrograin carbide substrate supports higher surface footage than standard carbide grades, extending tool life in demanding cuts.

Key Features

• Solid micrograin carbide construction for extended tool life and edge retention
• AlTiN finish for elevated heat resistance in high-speed and dry cutting applications
• 40-degree helix angle improves chip evacuation and reduces cutting forces
• Centercutting geometry allows direct plunge entry into the workpiece
• Stub length (9/16 inch LOC, 2-3/4 inch OAL) minimizes deflection in tight setups
• Right-hand cut with right-hand spiral flutes — compatible with standard spindle rotation

Compatibility

Designed for use in standard 7/16 inch collets, end mill holders, or shrink-fit toolholders on CNC machining centers and manual knee mills. No specific OEM system compatibility was stated in the product data.

Installation Notes

Installation and tool changes should be performed with the spindle fully stopped and machine power isolated per shop lockout/tagout procedures. Seat the 7/16 inch shank fully into the holder to the recommended gage-line depth before torquing the retention system to the toolholder manufacturer's specification. Inspect the cutting edges and coating for chips or wear before each use. Tool runout should be verified with a dial indicator after installation; excessive runout accelerates edge wear and reduces surface finish quality.