Covering a range of sizes from M4 to M18, this 9-piece triple square bit set is compatible with ¼" (6.4 mm), 3/8" (9.5 mm), and ½" (12.7 mm) drive tools. This set utilizes ¼" (6.4 mm) drive sockets for M4 and M5 sizes, while M6, M8, and M10 bits are used with 3/8" (9.5 mm) drive tools. For larger fasteners, the set includes M12, M14, M16, and M18 bits on ½" (12.7 mm) drive sockets.

Covering a range of sizes from M4 to M18, this 9-piece triple square bit set is compatible with ¼" (6.4 mm), 3/8" (9.5 mm), and ½" (12.7 mm) drive tools. This set utilizes ¼" (6.4 mm) drive sockets for M4 and M5 sizes, while M6, M8, and M10 bits are used with 3/8" (9.5 mm) drive tools. For larger fasteners, the set includes M12, M14, M16, and M18 bits on ½" (12.7 mm) drive sockets.