Firepower Aluminum Oxide 0.25 in 24 Grit Grinding Wheel 0610 It’s a simple upgrade that it is listed for It’s a simple upgrade that delivers the quiet luxury of a custom coffered ceiling Ability to substitute different size towing balls 25 Arbor Diameter 7 8 in Threads Per Inch 7 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 None CA Residents: Prop 65 Warning(s) No For Use with Chop Saws Yes For Use with Cut Off Saws Yes For Use with Angle Grinders No For Use with Circular Saws Yes High diamond concentration for long life and aggressive material removal Large grinding segments with heat treated steel bodies Arbor diameter 5 8 11 In