About this item Applications – These cutting discs are designed for cutting fiberglass, steel, iron, plastic, stainless steel, and other ferrous metals Size – 3In x 1/32In x 3/8In (Diameter: 3In x Arbor Hole Size: 3/8In x Thickness: 1/32In) Advantage – Ultra thin metal cutting discs in 4-inch diameter, amount of removed metal is reduced, increasing cutting speed and reducing the heat generated Material – Our cutting wheels are made with a proprietary blend of premium abrasive grains. These grains are self- sharpening and provide an aggressive cut Package Includes – 25-pack cut off disc with 3/8in mandrel