Lisle 19250 Stuck Bolt, Nut and Stud Remover Set - 6 Piece The 6 piece set removes standard and metric bolts, nuts and studs from 1/4 inches to 9/16 inches (6mm to 14mm) Comes in clam-shell case The remover spline cuts into the bolt head or threads for a sure grip Includes 6 different removers Made of super strong, hardened tool steel for durability