The double-ended Savage Barrel Nut Wrench allows easy removal of the barrel nut on both early and late model Savage 10 and 110 series rifles. Will also fit the model 12 rifles. Features two 1/2" square drive holes for a swing bar or torque wrench. Made from 3/16" steel. Kit Includes:1 Notched Barrel Nut Wrench1 Brass Shim1 Smooth Barrel Nut WrenchNotes: Barrel nut wrench will work with both large shank and small shank Savage barrels.