Osg 5803100 Square End Mill 0.748 in 2 Flute Cobalt

Product Description

The OSG 5803100 is a square end mill designed for precision material removal in milling applications across a range of ferrous and non-ferrous workpiece materials. Built from M42 cobalt high-speed steel, this tool delivers improved heat and wear resistance compared to standard HSS tooling. The cutter measures 0.748 inches in diameter with a 1-5/16 inch length of cut, a 3/4 inch shank diameter, and a 3-9/16 inch overall length. The 30-degree spiral flute geometry promotes smooth chip evacuation and reduces cutting forces. Centercutting capability allows the tool to plunge directly into the workpiece without pre-drilling. It is well suited for manual mills, CNC machining centers, and knee mills in job shop and production environments.

This end mill is appropriate for use in general-purpose milling operations including slotting, profiling, and peripheral milling. The 2-flute configuration provides generous flute valley space, making it a strong choice for softer metals, aluminum, and applications requiring aggressive chip clearance. Right-hand cut and right-hand flute orientation follow standard convention for most vertical and horizontal milling setups. The regular length classification makes it a practical everyday tool for machinists working within typical reach and deflection requirements.

Key Features

• M42 cobalt construction provides elevated red hardness and wear resistance over standard M2 HSS
• 30-degree helix angle promotes efficient chip flow and smooth surface finish
• Centercutting design enables direct plunge milling without a starter hole
• 2-flute geometry offers maximum chip clearance for softer materials and slotting operations
• Uncoated finish allows easy visual inspection for wear and is suitable for re-sharpening
• Right-hand cut and right-hand flute configuration compatible with standard milling setups

Compatibility

Part of the OSG Series 580 cobalt end mill line. Designed for use in standard 3/4 inch end mill holders, collet chucks, and Weldon-style tool holders on vertical and horizontal milling machines and CNC machining centers.

Installation Notes

Installation should be performed by a qualified machinist. Secure the 3/4 inch shank fully within the tool holder to the recommended engagement depth before tightening. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material and depth of cut.