Osg 90100311 Ball End Mill 1/16 in 5 Flute Solid Carbide Wxs

Product Description

The OSG 90100311 is a solid carbide ball end mill engineered for high-performance milling in hardened steels above 55 Rc, cast iron, and hard materials. Built on OSG's Series 9010 Exocarbmax platform, this tool features a 1/16 inch cutting diameter with a 3/32 inch length of cut and five flutes in a right-hand spiral configuration with a 30-degree helix angle. The WXS PVD coating provides thermal resistance and extended tool life in demanding metal-removal operations. At 2 inches overall length with a 1/4 inch straight-cylindrical shank, this stub-length mill fits standard collet chucks and tool holders used in CNC machining centers and manual mills.

This end mill is suited for finish and roughing passes in steel, cast iron, stainless steel, superalloys, and titanium. Its stub-length design improves rigidity, making it appropriate for tight-tolerance work in die and mold applications, aerospace components, and precision machining of hardened workpieces. The ultra-fine micrograin carbide substrate supports the tool geometry needed for small-diameter work at elevated surface footage. Secondary workpiece materials include stainless steel and superalloys, expanding its utility across a range of shop applications requiring a small-diameter ball profile.

Key Features

• Ultra-fine micrograin solid carbide substrate for strength at small diameters
• WXS PVD coating rated for hardened steels over 55 Rc
• Five-flute right-hand spiral design supports both roughing and finishing in a single tool
• 30-degree medium helix angle balances chip evacuation and cutting force
• Stub-length construction maximizes rigidity and minimizes deflection in precision cuts
• 0.0313 inch nose radius provides accurate ball-end profile for contoured surface work

Compatibility

Designed for use in CNC machining centers and manual mills accepting a 1/4 inch straight-cylindrical shank. Primary workpiece materials are steel, cast iron, and hard materials (ISO material codes P, K, H); secondary workpiece materials are stainless steel and superalloys and titanium (ISO codes M, S).

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Secure the 1/4 inch shank in a collet or end mill holder rated for the intended RPM and feed load; verify runout before cutting. Follow the tool manufacturer's recommended speeds and feeds for the workpiece material and hardness. Inspect the cutting edges under magnification before use, as small-diameter carbide tools are sensitive to chipping from improper handling or excessive overhang.