YATO professional socket set 1/2" 25 pcs. Set include: Standard sockets: 10, 11, 12, 13,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 27, 30, 32 mm. extension bar 127 mm. Spark sockets: 16 and 21 mm. T handle 255 mm. 72 teeths reversible, quick release, soft grip ratchet handle - minimum working stroke 5 degrees. L handle 317 mm.. Sockets are equipped with AS-DRIVE system which increases maximum torque by 25% with full protection to nuts. Manufactured from durable chrome vanadoum steel CrV 50BV30.