Norton 69957308009 SC-1 Carbide Burr Ball Nose Cylinder

Product Description

The NORTON 69957308009 is an SC-1 double cut tungsten carbide rotary burr with a ball nose cylinder head profile. Designed for use with die grinders and rotary tools, it removes material aggressively on a wide range of metals including hard and soft carbon steel, stainless steel, cast iron, copper, titanium, and tool steel. The double cut tooth pattern produces a finer finish than single cut while still clearing chips efficiently. With a 1/4 inch cutting diameter, 3/4 inch length of cut, and 2 inch overall length, this burr fits standard 1/4 inch collets and is rated to 25,000 RPM.

This burr is suited for weld blending, deburring, port matching, and material removal in fabrication, maintenance, and repair applications across metalworking trades. The ball nose cylinder shape allows access to contoured surfaces, cavities, and inside radii where flat or cylindrical profiles cannot reach. It is commonly used by machinists, welders, pipefitters, and maintenance technicians working on ferrous and non-ferrous metals. The uncoated tungsten carbide head maintains edge integrity at elevated speeds without the brittleness of high-speed steel alternatives.

Key Features

• Ball nose cylinder profile for contoured surfaces, cavities, and inside radii
• Double cut tooth style for faster material removal and smoother finish
• Tungsten carbide head rated to 25,000 RPM
• 1/4 inch shank fits standard die grinder collets
• Uncoated head suitable for dry cutting on a broad range of metals
• Industry specification SC-1 for cross-reference and replacement sourcing

Compatibility

Compatible with material applications including 300 Series Stainless, 400 Series Stainless, Cast Iron, Copper, Hard Carbon Steel, Soft Carbon Steel, Titanium, and Tool Steel. Fits any die grinder or rotary tool with a standard 1/4 inch collet.

Installation Notes

Install and remove the burr only with the tool powered off and the collet fully seated and tightened to the tool manufacturer's specification. Always wear eye protection and appropriate gloves when operating rotary burrs. Do not exceed the rated 25,000 RPM maximum speed. Inspect the shank and head for cracks or chipping before each use and replace if damage is observed.