Features: 1/4" Drive shank Can be used in screwdrivers and electric screwdrivers Magnetic bits for a secure hold Manufactured from chrome vanadium steel Specifications: 65mm Long Nut Drivers: 6 7 8 10 12 and 13mm 25mm Long Bits: Slotted: SL3 SL4 Philips: PH2 PH3 Hex: 3, 4, 5, 6mm 60mm Long Magnetic Extension Bar