IVY Classic Hanger Bolt Driver enables drills or impact drivers to drive hanger bolts and threaded rod. The internal threads and ball bearing stop at base of hanger bolt driver allow for easy thread release. Manufactured from alloy-steel for extra strength and durability, built to withstand the high torque (rotational force) of impact drivers, Impact Plus (Registered Trademark). IVY Classic Industries manufactures an extensive line of hanger bolt drivers in a variety of sizes and lengths. IVY Classic Industries is dedicated to producing a comprehensive, quality line of power tool accessories and hand tools.