4" METAL CUT OFF DISC - THIN KERF 4X.040X5 *Series: Thin Kerf *Material: Aluminum Oxide *Product Type: Metal Cut-Off Wheel *Wheel Diameter: 4 in. *Thickness: 0.04 in. *Arbor Size: 5/8 in. *Application: Angle Grinders *Number in Package: 1 pk *Maximum Speed: 15,250 rpm *Arbor Type: Type 1 *For use on metal applications including steel, stainless steel, cast iron and sheet metal *The thin kerf design provides for a thin cut, draws less power/less resistance and allows your power tool to work at its full potential *Premium aluminum oxide blend - a superior quality formulation designed for fast material removal and long cutting life *Medium Duty