Osg 5300500 Square End Mill 3/8 in 2 Flute Cobalt

Product Description

The OSG 5300500 is a cobalt square end mill designed for milling operations in general machining environments. Built from M42 cobalt high-speed steel, it delivers improved heat and wear resistance compared to standard HSS tooling, making it well-suited for harder ferrous and non-ferrous materials. The 2-flute configuration provides good chip clearance in a variety of materials, and the 45-degree helix angle promotes smooth cutting action and reduced chatter. With a 3/8 inch cutting diameter and 3/4 inch length of cut, this end mill handles slotting, peripheral milling, and profiling tasks in both manual and CNC machine tools.

This end mill is intended for use in machining centers, knee mills, and CNC machining applications where a regular-length cobalt tool is appropriate. The right-hand cut and right-hand spiral flute orientation matches the standard spindle rotation on conventional milling equipment. The centercutting geometry allows plunge entry without pre-drilling, adding flexibility to the operation. It is a single-end, uncoated tool from OSG Series 530, commonly used in job shops, maintenance machining, and production environments.

Key Features

• M42 cobalt construction for improved heat resistance over standard HSS
• 45-degree helix angle for smooth cutting and reduced vibration
• 2-flute design provides chip clearance in slotting and profiling cuts
• Centercutting geometry allows direct plunge entry
• Right-hand cut, right-hand flute for use in standard milling spindles
• Uncoated finish suitable for use with cutting fluid in a wide range of materials

Compatibility

Designed as a direct-fit tool for 3/8 inch collets, ER collet chucks, and end mill holders on standard milling equipment. Part of the OSG Series 530 regular-length cobalt end mill line.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Secure the shank fully in a properly sized collet or end mill holder, ensuring adequate grip length to prevent pullout under cutting loads. Verify spindle speed and feed rate against the material being machined before engaging the cut. Inspect the tool and holder for runout before initiating production cuts.