Irwin 1892007 Power Bit, T20 Drive, Torx Drive, 1/4 in Shank, Hex Shank, 2-3/8 in L, High-Grade Steel

DoubleLok technology ensures both ends of bit lock securely in impact drivers and quick change chucks, enabling use of two tips from one bit for added convenience and extended life. Precision tip geometry delivers great fitment, reducing stripping and cam-out. Power groove designed for compatibility with Irwin® impact performance series magnetic screw hold attachment. Manufactured with heavy-duty, cold forged high-grade steel to withstand high torque output. T20/T20. 2-3/8 in overall length.