Sgs Pro 11850 SC-4 Ball Nose Cylinder Carbide Bur 7/16 in

Product Description

The SGS PRO 11850 is a single-cut tungsten carbide abrasive bur in the SC-4 ball nose cylinder profile, designed for precision material removal and contouring in metalworking applications. The bur features a 7/16-inch (0.4375-inch) cutting diameter, a 1-inch length of cut, and a 1/4-inch shank diameter, with an overall length of 2-3/4 inches. Rated to 28,000 RPM, it delivers aggressive stock removal at high speeds. The uncoated tungsten carbide head provides hardness and wear resistance across a wide range of ferrous and non-ferrous metals. Machinists, tool-and-die technicians, and fabricators use this bur for deburring, chamfering, and finishing work in production and maintenance settings.

This bur is suited for use on steel, hardened steel, stainless steel, cast iron, titanium, cermet, nickel, copper, and copper alloys. The SC-4 ball nose cylinder geometry allows the operator to work into corners, blend radii, and remove material in areas where flat or conical profiles cannot reach. It is commonly used with pneumatic die grinders and high-speed rotary tools in fabrication shops, MRO environments, and on the production floor. The 1/4-inch shank fits standard die grinder collets without an adapter.

Key Features

• SC-4 ball nose cylinder profile for contouring, corner blending, and radius work
• Single-cut tooth style delivers smooth finishes with controlled material removal
• Tungsten carbide head resists wear on hard and abrasive materials
• 28,000 RPM maximum speed rating for use with high-speed pneumatic die grinders
• 1/4-inch shank fits standard collets on most die grinders without an adapter
• Uncoated head compatible with a broad range of metals including titanium and stainless steel

Compatibility

Designed for use with pneumatic and electric die grinders accepting a 1/4-inch collet. Suitable for cutting steel, hardened steel, stainless steel, cast iron, titanium, cermet, nickel, copper, and copper alloys as specified by the SC-4 industry designation.

Installation Notes

Install the bur into a die grinder collet rated for 1/4-inch shanks and verify the collet nut is fully tightened before operation. Confirm the grinder speed does not exceed 28,000 RPM before use. Always wear appropriate eye and face protection when operating rotary carbide burs. Inspect the bur for cracks or damage before each use and discard any bur showing signs of chipping or shank wear.