Osg 20150411 Corner Radius End Mill 3/8 in 4 Flute

Product Description

The OSG 20150411 is a solid carbide corner radius end mill engineered for precision milling in ferrous and non-ferrous metals. It features a 3/8-inch cutting diameter, a 0.03-inch corner radius, and four flutes with a right-hand cutting and flute direction. A TiAlN coating provides thermal resistance and wear protection during high-speed and dry machining operations. The 40-degree helix angle promotes smooth chip evacuation and reduces cutting forces. With an overall length of 2.5 inches and a length of cut of 7/8 inch, this tool is sized for regular-length applications where rigidity and surface finish quality are priorities.

This end mill is suited for profiling, slotting, and finishing passes in CNC machining centers and manual milling machines. The centercutting design allows plunge entry, making it practical for pocketing operations. The coarse pitch and four-flute configuration balance metal removal rate with chip clearance in hardened steels, stainless steels, titanium alloys, and similar materials. It is selected by machinists, toolroom operators, and CNC programmers working in job shop, aerospace, automotive, and general manufacturing environments.

Key Features

• 0.03-inch corner radius reduces stress concentration and extends part and tool life at pocket corners
• TiAlN coating provides high-temperature hardness and oxidation resistance for dry or near-dry machining
• 40-degree helix angle promotes efficient chip evacuation and smooth cutting action
• Centercutting geometry enables direct plunge entry for pocketing without pre-drilling
• Solid carbide construction delivers rigidity and dimensional stability under heavy cutting loads
• Right-hand cut and right-hand flute configuration compatible with standard spindle rotation

Compatibility

Designed as a regular-length solid carbide corner radius end mill with a 3/8-inch shank diameter, compatible with standard ER and straight-bore collet systems accepting 3/8-inch shank tooling.

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional. Secure the shank in a properly sized collet or end mill holder to the full recommended grip depth, and verify runout before commencing cuts. Ensure the spindle is fully stopped and the machine is in a safe locked-out state before changing or setting the tool. Follow the machine manufacturer and tooling manufacturer feeds and speeds guidelines for the workpiece material and coating type.