Osg 464-1181 Square End Mill 0.1181 in 4 Flute Carbide

Product Description

The OSG 464-1181 is a solid carbide square end mill designed for precision milling operations in metal, composites, and other hard materials. This tool features a 0.1181-inch (3.00 mm) mill diameter and a 0.748-inch length of cut, making it well-suited for slotting, profiling, and plunge cuts where a small-diameter, long-reach tool is required. With four flutes and a 30-degree helix angle, it balances chip evacuation efficiency with surface finish quality. The centercutting geometry allows direct plunge entry without a pre-drilled pilot hole. Intended for use by machinists and tool-and-die professionals in CNC and manual milling applications.

This end mill belongs to the OSG Series 464 long-series line and is configured for right-hand cut and right-hand flute direction. The uncoated solid carbide construction makes it a reliable choice for dry cutting or use with cutting fluids where a coated tool is not required. At 0.1181 inches in diameter, it is well-matched to fine-detail work in mold making, die work, and precision part machining. The spiral flute design promotes smooth cutting action and consistent chip flow through the cut zone.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding milling applications
• 0.1181-inch (3.00 mm) diameter with 0.748-inch (19.00 mm) length of cut
• 4-flute, 30-degree helix spiral flute design for balanced chip evacuation and finish quality
• Centercutting geometry allows direct plunge entry without pilot drilling
• Right-hand cut and right-hand flute direction for standard CNC and manual mill spindle use
• Long-series length type providing extended reach over standard-length equivalents
• Uncoated finish suitable for dry or wet cutting where coatings are not specified

Compatibility

Designed as an OEM-style replacement or direct-use tooling for standard 3.00 mm shank collets and tool holders used in CNC machining centers and manual vertical mills.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Use a collet or tool holder rated for the 3.00 mm shank diameter and torque the retention mechanism per the tool holder manufacturer specification. Verify runout with a dial indicator before beginning a production cut, as excessive runout on small-diameter end mills accelerates tool wear and can cause breakage.