Head 타입 = Slotted 타입 = Driver Bit Size = SL4.5 Material = Chrome Molybdenum Vanadium Steel RS Pro Power Tool Slotted Screwdriver Bit. inch, hexagonal drive bits manufactured to DIN3126-E6-3 standard, particularly suited for high torque work ( i.e. driving machine screws to a dead stop). Features and Benefits For use with slotted screws Tip meets the requirements of DIN5264-C Chrome molybdenum vanadium steel Sandblast finish