5-in-1 Multi-Nut Driver. Features Multiple sizes in one convenient tool. Includes interchangeable 3/16 , 1/4 , 5/16 , 3/8 , and 9/16 sizes. Heavy duty handle and shaft exceed the torque performance of regular nut drivers. Wrench assist feature for torque when needed. Cushion-Grip handle for maximum torque and comfort. Specifications Blade Material Steel. Blade Width 0.5 13 mm . Handle Color Black. Overall Length 9.1 231.14 mm . Shank Length 4 102 mm . Shank Shape Round. Special Features Wrench-Assist for Added Torque. Drive Size 3/16 , 1/4 , 5/16 , 3/8 , and 9/16 . Weight 1.00 lbs. 0.45 kg Features Multiple sizes in one convenient tool Wrench assist feature for torque when needed. Cushion-Grip handle for maximum torque and comfort Blade Width 0.5 13 mm Handle Color Black Overall Length 9.1 231.14 mm