Accupro 12182915 Square End Mill 7/16 in 4 Flute Carbide

Product Description

The ACCUPRO 12182915 is a solid carbide square end mill designed for precision material removal in milling operations. Built from micrograin carbide and coated with AlTiN (aluminum titanium nitride), it delivers heat resistance and wear life suited for machining hardened steels, stainless, and high-temp alloys. The 4-flute, spiral configuration with a 40-degree helix angle promotes efficient chip evacuation and a smooth finish. At 7/16 inch in diameter with a 5/8 inch length of cut and 2 inch overall length, this is a stub-length tool intended for rigid, close-tolerance applications. Right-hand cut with right-hand flute direction. Installed by machinists and tool-and-die professionals on CNC and manual milling machines.

This end mill fits residential shop, production floor, and job-shop environments where short overhang and maximum rigidity are priorities. The stub-length format reduces deflection in interrupted cuts and shoulder milling. Centercutting capability allows plunge entry without a pre-drilled pilot hole, adding flexibility in pocket and slot milling operations. The 7/16 inch shank diameter matches the 7/16 inch cutter diameter, simplifying collet selection in standard ER or end mill holders.

Key Features

• Solid micrograin carbide construction for extended tool life and dimensional stability
• AlTiN finish provides high-heat resistance for dry or semi-dry cutting conditions
• 40-degree helix angle with spiral flute for efficient chip evacuation and reduced cutting forces
• 4-flute design balances chip room with surface finish quality
• Centercutting geometry allows direct plunge milling without pre-drilling
• Stub-length (2 inch OAL) format maximizes rigidity and minimizes deflection

Compatibility

Designed as a standard 7/16 inch square end mill for use in ER collet chucks, end mill holders, and side-lock holders accepting a 7/16 inch shank diameter on CNC machining centers or manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Seat the shank to the full recommended engagement depth in the holder to minimize runout and prevent pullout during cutting. Verify shank diameter tolerance compatibility with the holder before clamping; the shank tolerance on this tool is -0.0001 to -0.0004 inch.