Bahco 3/8" Sq Drive 33 Pce Metric Socket Set1 4 & 3 8" sockets 1 4in and 3 8in square drive socket set with dynamic drive profile. DIN 3120 ISO1174. Finish: matt chrome platedMaterial: chrome vanadium. Plastic case: oil and temperature resistant polypropylene. Contents: 34 pieces 1 each 3 8in 6 point dynamic drive sockets 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 and 22 mm. 1 each 3 8in extension bars 3in and 6in. 1 x 3 8in universal joint. 1x 3 8in x 1 4in bit holder. 1each 3 8in spark plug