Osg 802-3750 Abrasive Bur SC-3 Ball Nose Cylinder 3/8 in

Product Description

The OSG 802-3750 is a double-cut carbide abrasive bur conforming to industry specification SC-3, featuring a ball nose cylinder head shape designed for aggressive material removal and contouring in hard metals. With a cutting diameter of 0.375 inches and a length of cut of 0.75 inches, this bur is suited for die grinding, deburring, and finishing operations where precision and tool longevity matter. The double-cut tooth pattern produces a finer finish than single-cut designs while still clearing chips efficiently. A 0.25-inch shank diameter fits standard die grinder and rotary tool collets used in professional machine shops and fabrication environments.

This bur is rated for use on steel, stainless steel, cast iron, superalloys, and titanium, making it appropriate across a wide range of industrial and maintenance machining applications. Typical uses include weld blending, port work, cavity shaping in molds and dies, and deburring drilled or cast features. At a maximum speed rating of 63,000 RPM, it supports high-speed rotary tools standard in professional metalworking settings. Machinists, tool-and-die technicians, and maintenance professionals working with hard or exotic alloys will find this bur well matched to demanding material removal tasks.

Key Features

• SC-3 industry specification ball nose cylinder geometry for contouring and blending
• Double-cut tooth pattern for efficient chip clearance and improved surface finish
• Solid carbide head construction for extended tool life in hard and abrasive materials
• Rated for steel, stainless steel, cast iron, superalloys, and titanium
• Maximum operating speed of 63,000 RPM compatible with high-speed die grinders
• Uncoated head - no coating delamination risk on abrasive or interrupted cuts

Compatibility

Designed for use with standard 0.25-inch collet die grinders and rotary tools. Suitable for material removal, contouring, and deburring on steel, stainless steel, cast iron, superalloys, and titanium per the SC-3 specification.

Installation Notes

Install the shank fully into the collet of a die grinder or rotary tool and tighten the collet nut securely before operation. Always verify that the tool spindle speed does not exceed the 63,000 RPM maximum rating for this bur. Wear appropriate eye protection and secure the workpiece before beginning material removal. Inspect the bur for chipping or wear before each use and remove from service if damage is present.