IRWIN 1903522 Bit Set, Steel, 5-Piece

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 excellent 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. Includes T15/T20, T20/T25, T25/T30, T25/T25 and attachment.