Osg 5820700 Square End Mill 0.3543 in 2 Flute Cobalt

Product Description

The OSG 5820700 is a cobalt double-end square end mill designed for milling operations in metalworking and machining environments. Built from M42 cobalt high-speed steel, this tool delivers strong heat and wear resistance in demanding cutting applications. It features a 0.3543-inch cutting diameter, a 9/16-inch length of cut, and a 30-degree helix angle with spiral fluting. The double-end design doubles usable tool life before replacement. Centercutting geometry allows direct plunge entry into workpiece material. This end mill is installed and operated by machinists and tool-and-die professionals on vertical mills, CNC machining centers, and manual knee mills.

The OSG 5820700 is suited for milling slots, pockets, profiles, and contours in ferrous and non-ferrous metals. Its M42 cobalt construction makes it a strong choice for cutting alloy steels, stainless steels, cast iron, and other hard or abrasive materials where standard high-speed steel tooling shows accelerated wear. The uncoated finish and right-hand cut with right-hand flute configuration are standard for general-purpose metalcutting setups. This is a regular-length end mill appropriate for most standard reach applications.

Key Features

• M42 cobalt construction for improved heat resistance and tool life in hard materials
• Double-end design provides two usable cutting ends per tool
• Centercutting geometry allows direct plunge milling without pre-drilling
• 30-degree helix spiral flute promotes efficient chip evacuation
• Right-hand cut and right-hand flute for standard milling machine spindle compatibility
• Uncoated finish suitable for use with cutting fluids in a variety of metalcutting applications

Compatibility

Designed for use with standard 3/8-inch collets or end mill holders on vertical milling machines and CNC machining centers; part of the OSG Series 582 double-end cobalt end mill line.

Installation Notes

This end mill is installed and removed by qualified machinists. Always power down and lock out the machine spindle before changing tooling. Secure the shank fully within the collet or end mill holder to the recommended engagement depth per the machine tool manufacturer guidelines. Inspect the cutting edges for chipping or wear before each use and replace the tool if damage is observed.