Includes 15-pc. 3/8 in. drive deep 12-point sockets: 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 in. and socket rail 12-point opening fits double hex (12-sided), hex, and square-shaped fasteners Socket geometry is designed to apply force to flat sides of fasteners and not the corners, preventing round-off Deep-length sockets reach into wells and accommodate the excess threads of longer shafts Extra-large die-stamped size markings are easy to read and can’t wear off
