Firepower Steel 0.25 in Cup Wheel Kraft Faced Insulation they’re the essential hardware upgrade Irrigation Kit they’re the essential hardware upgrade for a luxe Easy Coordination: Pairs seamlessly with complementary mosaics and field tiles rust and paint Heavy duty cup brushes with arbor adapters and threads to fit most grinders 5 Arbor Diameter 1 4 in Threads Per Inch 2 For Use with Concrete & Masonry No For Use with Aluminum Yes For Use with Tile No For Use with Stainless Steel Yes For Use with Ductile Pipe No For Use with Asphalt No For Use with Ferrous Metal Yes Package Quantity 1 Warranty 90 day CA Residents: Prop 65 Warning(s) No For Use with Cut Off Saws No For Use with Angle Grinders Yes For Use with Chop Saws No For Use with Circular Saws No