Firepower 5 Pack Aluminum Oxide 0.63 in 36 Grit Grinding Wheel Dual Action Sanders Spindle Lock Arbor Size 5 8 Spindle Lock Arbor Size 5 8 Amperage (amps) 2 The M12 FUEL™ Oscillating Multi Tool has a 12 Setting Dial allowing users to adjust the speed to the application 13 Arbor Diameter 5 8 in Threads Per Inch 4 For Use with Concrete & Masonry No For Use with Aluminum No For Use with Tile No For Use with Stainless Steel No For Use with Ductile Pipe No For Use with Asphalt No For Use with Ferrous Metal No Package Quantity 5 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 Fully reinforced with resin bonded aluminum oxide to ensure safety at high speed and to increase bonding and impact strength Designed for use on air or electric powered right angle or vertical shaft grinders Grade A36S Maximum RPM: 13