IRWIN Tools IMPACT Performance Series Double-Ended Screwdriver Power Bit, TORX, 2 3/8-inch length, 3-Piece Set (1892093) Built for maximum durability and long life with impact drivers. DoubleLokTechnology ensures both ends of bit lock securely Precision tip geometry delivers superior fitment, reducing stripping and cam-out Power Groove designed for compatibility with IRWIN Impact Performance Series Magnetic Screw-Hold Attachment 3 piece set includes 3", 6", and 12" 3/8" drive socket extensions