Forney Metal Cut-Off Wheel 4-1/2 in. Dia. *Product Type: Metal Cut-Off Wheel *Diameter: 4-1/2 in. *Thickness: .045 in. thick *Arbor Size: 7/8 in. *Abrasive Material: Aluminum Oxide *Packaging Type: Bulk *Grit: AL46N-BF *Maximum Speed: 13,580 rpm *Compatibility: Right Angle Grinders *Feature 2: Used on aluminum and other non-ferrous materials *Feature 1: Maximum RPM 13580 *Feature 3: Designed to be used on right angle grinders only *Type 27 * Depressed center *Designed for metal cutting, metal abrasion, body work, metal fabrication and general repair work* Used on aluminum and other non-ferrous materials *Discovery ACC