Power Bit, Application - Tools Impact, Fastening Tool Tip Size #1, Hex Shank Size 1/4 in, Overall Bit Length 2 in, Bit Style Square Recess, Shank Style Hex, Fastening Tool Material S2 Steel, Single End/Double End Single End, Includes (1) SQ1 2 in Insert Bit, SAE or Metric SAE, Impact Rated Yes, Finish Black Phosphate, Power Bit