Size: 4 1/2inch 115mm

Abrasive: zirconia abrasive (ceramic abrasive, aluminum oxide abrasive, silicon carbide abrasive also available)

High quality material: Industrial grade ceramic abrasive for heavy duty material removing and a long life.

Ceramic Oxide grain provides cool grinding on poor heat-conducting materials without thermal damage to the workpiece

Radial construction shape allows for precise grinding out of fillet welds and repair applications

Widely used：Works best on a variety of
metals like stainless steel, carbon steel, cast iron, titanium, hardwood, and many other metals.

Cuts fast and outlast sanding discs 10 to 1 for long life