7-piece nut driver set with 6 inch shafts. General-purpose selection of the most frequently used nut drivers. 6 inch (152 mm) full hollow shaft facilitates work on long bolt applications. Set contains 646-3/16, 646-1/4, 646-5/16, 646-11/32, 646-3/8, 646-7/16 and 630-1/2 nut drivers. Cushion Grip handles allow for greater torque and comfort. Shafts are chrome-plated for smooth feel and corrosion resistance. Internal flanges provide solid, twist-resistant shaft anchor.