Forney Metal Cut-Off Wheel 4 in. Dia. x 1/ *Diameter: 4 in. *Arbor Size: 3/8 in. *Material: Aluminum Oxide *Product Type: Metal Cut-Off Wheel *Number in Package: 1 pc. *Packaging Type: Bulk *Thickness: 1/16 in. *Usage: Designed for metal cutting-metal abrasion-body work-metal fabrication and general repair work *Maximum Speed: 19100 rpm *Compatibility: Die Grinders *Arbor Type: Type 1 *Type 1 *Designed for metal cutting, metal abrasion, body work, metal fabrication and general repair work* Used on ferrous materials *Discovery Regional