Insert Bit, Application - Tools Impact, Fastening Tool Tip Size 1 in, Hex Shank Size 1/4 in, Overall Bit Length 1 in, Bit Style 8-Point, Shank Style Hex, Fastening Tool Material Alloy Steel, Single End/Double End Single End, Includes (2) 1 in HeadLok(TM) Bits, SAE or Metric SAE, Impact Rated Yes, Finish Black Phosphate, Insert Bit