OMX5199 Features: * Loosens hard to turn bolts and nuts * Heavy-duty spring for added torque * Drive Size: 3/8 in * Measuring System: Inch * Quantity: 13 per box * Wt.: 1.92 lb * Price is for 1 Set Includes: * Includes: Hand Impact Driver, (3) 1/4 in. Hex Phillips #1, #2, #3, (2) 1/4 in. Hex Slotted Insert Bits, (3) 5/16 in. Hex Phillips #1, #2, #3, (2) 5/16 in. Hex Slotted Insert Bits, 3/8 in. Dr. 5/16 in. Hex Bit Holder, 3/8 in. Dr. 1/4 in. Hex Bit Holder