Klein Tools Multi-Bit Stubby Screwdriver / Nut driver with ratcheting mechanism lets you work faster and with more efficiency. Includes 1/4-Inch and 5/16-Inch nut drivers. With its Cushion-Grip handle, the stubby interchangeable screwdriver/nut driver was designed with comfort and efficiency in mind. The driver is made of the highest-quality tempered steel. Its strong, durable tips are manufactured to fit screw opening securely. They resist slippage and provide positive turning action. The strong nut driver function improves bit-holding power, even with tough applications. Combo Bits €” Slotted Bits 1/4" (6.4 mm), 3/16" (4.8 mm)Other Bits €” Hex Bits €” Handle Color Yellow/Black Overall Length 3.5" (8.9 cm) Material Steel Phillips Bits #1, #2 Nut Driver Sizes 1/4", 5/16" Number of Pieces 4 Square Bits €” TORX Bits €” Special Features Ratcheting Mechanism Shank Length 1.297" (3.3 cm) Weight 1.6 oz (45 g) Handle Type Cushion Grip Bit Retention Quick Change