Osg 36040211 Square End Mill 5/64 in 4 Flute Solid Carbide

Product Description

The OSG 36040211 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. Built on the OSG Series 3604 platform with a WXL finish, this tool features a 5/64 inch (0.0781 inch) cutting diameter, a 1/4 inch length of cut, and a 30-degree helix angle with four spiral flutes. The micrograin carbide substrate supports tight tolerances and consistent performance in ferrous and non-ferrous materials. The centercutting geometry allows both plunge and peripheral milling. This tool is intended for use by machinists and CNC operators running light-to-medium milling work where a small-diameter, short-reach end mill is required.

This end mill is suited for slot milling, profiling, and pocketing operations on small features where a 1/8 inch shank and compact 1-1/2 inch overall length fit confined setups or small ER-style collet chucks. The regular length designation and 0.2 to 0.3 inch length-of-cut range make it appropriate for shallow passes on precision components in aerospace, medical device, mold-and-die, and general CNC machining environments. Right-hand cut and right-hand flute orientation are standard for conventional CNC spindle setups.

Key Features

• Solid micrograin carbide construction for wear resistance and dimensional stability
• WXL finish for improved lubricity and extended tool life in dry or near-dry machining
• Centercutting design allows direct plunge entry into the workpiece
• 30-degree helix angle promotes efficient chip evacuation in spiral flute configuration
• Tight mill diameter tolerance of +0.0000 / -0.0008 inches for close-tolerance feature work
• Four flutes for improved surface finish versus two- or three-flute alternatives at this diameter

Compatibility

Designed as a standard single-end square end mill with a 1/8 inch shank, compatible with ER11, ER16, and other collet systems that accept 1/8 inch shank tooling on CNC milling machines and machining centers.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Secure the 1/8 inch shank in a clean, properly sized collet or end mill holder torqued to the tool-holder specification before spindle operation. Ensure the machine spindle is fully stopped and the control is in a safe state before tooling changes. Do not exceed the rated length of cut; excessive axial depth beyond the 1/4 inch flute length risks tool deflection and breakage at this diameter.