Very good quality set of socket wrenches The attachments and the drive of the attachment, made of durable tool steel The set enables work that requires very high loads and precision Very high strength and corrosion resistance. 1/4 "caps: 4, 4. 5, 5, 5. 5, 6, 7, 8, 9, 10, 11, 12 mm 3/8" attachment: 13, 14, 17 mm extension 3/8 ": 70 mm ratchet 3 /8 ": 190 mm screwdriver 1/4", L = 50 mm 3/8 candle cap