Lisle 71200 Stud Remover Allows for easy removal of studs Tool has two holes, 1/2 inch (14 mm) and 3/4 inch (19 mm) for optimum fit, minimizing damage to threads Use with 1/2 inch square drive Use with 1/2 inch square drive Package dimension is 5.25 inches width by 6.13 inches height by 2.5 inches depth