Klein Tools 70283 Screwdriver Replacement Bit Set Contains No. 1, No. 2, and No. 3 square-recess tips Bits fit replaceable-bit screwdrivers and other sockets that accept 1/4-Inch-hex bits Precision-milled bits are 1-Inch in length and are 1/4-Inch hex Meets or exceeds applicable ASME/ANSI specifications Weight: 0.05-Pound