Insert Bit, Application – Tools Impact, Bit Style Tamper Resistant Torx(R), Fastening Tool Tip Size T30, Shank Style Hex, Hex Shank Size 1/4 in, Single End, Fastening Tool Material S2 Steel, Overall Bit Length 1 in, SAE, Finish Black Manganese Phosphate, Impact Rated Impact Rated, Insert Bit, Package Quantity 2