Impact Driver Bits Application - Tools Impact Fastening Tool Tip Size T30 Hex Shank Size 1/4 in Overall Bit Length 2 in Bit Style Torx Shank Style Torx(TM) Fastening Tool Material Alloy Steel Single End/Double End Double End Includes 2 in Impact Tough Torx #30 Power Bit SAE or Metric SAE Impact Rated Yes Power Bit