Accupro 14788473 Square End Mill 4 Flute Solid Carbide

Product Description

The ACCUPRO 14788473 is a solid carbide square end mill designed for precision milling operations in metal, composite, and engineering-grade material applications. Built with 4 helical flutes and a centercutting geometry, this end mill handles both plunge cutting and peripheral milling in a single tool. The mill diameter measures 0.2030 inches (13/64 inch nominal) with a 0.2500-inch cylindrical shank. Length of cut is 0.6250 inches (5/8 inch), and overall length is 2.5 inches. The 38-42 degree helix angle promotes efficient chip evacuation and reduces heat buildup during extended cutting passes.

This end mill is suited for use in vertical machining centers, CNC knee mills, and manual milling machines where a small-diameter, close-tolerance cutter is required. Its solid carbide construction makes it appropriate for hardened steels, stainless alloys, cast iron, and non-ferrous materials. The cylindrical shank seats directly into standard ER or end mill holders sized for 1/4-inch shank tooling. Machinists, tool-and-die makers, and CNC operators working in job shops, maintenance facilities, and production environments are the typical end users.

Key Features

• Centercutting design allows direct plunge entry without a pilot hole
• 4 helical flutes for improved surface finish and chip flow
• 38-42 degree helix angle reduces cutting forces and heat generation
• Solid carbide construction provides rigidity and wear resistance over high-speed tool steel
• 0.2500-inch cylindrical shank fits standard 1/4-inch end mill and collet holders
• No chipbreaker geometry for clean finish cuts in ferrous and non-ferrous materials

Compatibility

Designed as a direct-fit replacement for standard 1/4-inch cylindrical shank end mill holders and ER collet systems accepting a 0.2500-inch shank diameter.

Installation Notes

Installation is performed by a machinist or CNC operator. Ensure the spindle is fully stopped and the machine is powered down or placed in E-stop before changing tooling. Confirm the shank is fully seated and the set screw or collet nut is torqued according to the toolholder manufacturer specifications. Inspect runout with a dial indicator after seating to verify concentricity before initiating a cutting program.