Osg 36040511 Square End Mill 1/8 Inch 4 Flute Carbide

Product Description

The OSG 36040511 is a 4-flute, solid carbide square end mill designed for precision milling in metalworking and machining applications. Built to Series 3604 standards, it features a WXL finish and a 30-degree spiral helix angle that promotes efficient chip evacuation and reduces heat buildup during cutting. The micrograin carbide construction delivers hardness and wear resistance suited to demanding production environments. With a 0.1250-inch cutting diameter and a 0.5000-inch length of cut, this tool is sized for slotting, profiling, and finishing passes on small-feature workpieces. It is a right-hand cut, right-hand flute, centercutting tool, meaning it can be used for plunge entry as well as lateral cutting passes. Machinists and CNC operators are the primary users.

This end mill is well suited for close-tolerance work on ferrous and non-ferrous materials where a small-diameter, short-reach tool is required. The regular-length geometry and 1.5000-inch overall length keep deflection low at this diameter. The WXL coating improves surface lubricity and tool life compared to uncoated carbide in similar applications. It ships individually and is appropriate for job shops, production floors, and tool-and-die operations running high-speed machining programs that demand consistent dimensional accuracy on small features.

Key Features

• Solid micrograin carbide construction for hardness and wear resistance
• WXL finish improves lubricity and extends tool life versus uncoated carbide
• 30-degree helix angle with spiral flute promotes chip evacuation and reduces cutting forces
• Centercutting design allows plunge entry without a pre-drilled pilot hole
• Right-hand cut and right-hand flute geometry for standard CNC and manual mill setups
• Diameter tolerance of plus 0.0000 minus 0.0008 inches ensures consistent part accuracy

Compatibility

Designed as an OEM-style replacement and standard production end mill for CNC machining centers and manual mills accepting a 1/8-inch straight shank collet or tool holder.

Installation Notes

Installation is performed by machinists or CNC setup technicians using a collet chuck or end mill holder sized for a 1/8-inch shank. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool. Verify runout at the collet before cutting to stay within the tool diameter tolerance. Follow machine manufacturer guidelines and shop-standard speeds and feeds for carbide tooling at this diameter.