Power Bit, Application - Tools Impact, Fastening Tool Tip Size T40, Hex Shank Size 1/4 in, Overall Bit Length 2 in, Bit Style Torx(R), Shank Style Hex Power Drive, Fastening Tool Material S2 Steel, Single End/Double End Single End, SAE or Metric SAE, Impact Rated Yes, Finish Magnesium Phosphate, Power Bit, Package Quantity 2.