Integrated screwdriver/nut driver shaft holds 8 popular tips and converts to 3 nut driver sizes. Interchangeable blade for quick and easy switch out. Industrial strength, heat treated bits. Blast finish bit tips provide a firm hold and reduce cam-out. Assembled in USA of US and imported components. Contains: 3/8'' (10 mm), 5/16'' (8 mm) and 1/4'' (6 mm) nut drivers, #1 and #2 Phillips, 1/4'' (6 mm) and 3/16'' (5 mm) slotted, T10 and T15 TORX®, and #1 and #2 square recess Cushion-Grip handle for greater torque and comfort.