Crescent SDMBR2 Power Drive Ratcheting Screwdriver Kit, 34-Piece Kit includes: Ratchet screwdriver with 3 Torque positions, stainless magnetic bit hold with 1/4-Inch hex drive, 7 power nut drivers 3/16-Inch - 7/16-Inch, 7 power nut drivers 5 mm - 11mm, 18 screwdriver bits. The ergonomic handle has a non-slip grip to prevent slippage. Magnetic shaft makes bit changing easy. Durable plastic case holds ratchet, bits and drivers secure.