Accupro 2500353 Square End Mill 7/16 in 3 Flute Carbide

Product Description

The ACCUPRO 2500353 is a solid carbide square end mill designed for precision milling in demanding metal-cutting applications. With a 7/16-inch cutting diameter, 1-inch length of cut, and three flutes arranged in a variable helix pattern, this tool delivers improved chip evacuation and reduced chatter compared to fixed-helix designs. The ZrN (zirconium nitride) coating extends tool life by reducing friction and heat buildup at the cutting edge. The micrograin carbide substrate provides the toughness and rigidity needed for high-feed profiling, slotting, and peripheral milling. This is a single-end, right-hand cut, right-hand flute tool suited for use in CNC machining centers and manual mills.

This end mill is intended for professional machinists and tool-and-die shops working with ferrous and non-ferrous materials where surface finish and dimensional accuracy are critical. The regular-length geometry and consistent 7/16-inch shank diameter allow straightforward setup in standard collet chucks or end mill holders. The centercutting capability supports plunge entry, making it versatile across profiling, pocketing, and slotting operations without a pre-drilled pilot hole.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• ZrN coating reduces friction and extends tool life in dry or light-coolant cutting
• Variable helix flute geometry minimizes chatter and vibration during cut
• Centercutting design allows direct plunge entry
• Right-hand cut and right-hand flute for standard spindle rotation
• Consistent shank and cutter diameter at 7/16 inch for repeatable tool holding

Compatibility

Designed as a standard-shank solid carbide square end mill compatible with 7/16-inch collet chucks, shrink-fit holders, and end mill holders used in CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the machine spindle is fully stopped and locked out before loading or changing tooling. Verify collet or holder runout with a dial indicator before beginning a production run, as excessive runout accelerates tool wear and degrades surface finish. Confirm cutting parameters — speed, feed, and depth of cut — are appropriate for the workpiece material before engaging the cut.