The 24 piece bahco 12in sqaure drive metric socket set featuring dynamic drive profiles the sockets are made from chrome vanadium with a chrome plated finish supplied in a oil and temperature resistant polypropene case conforms to din3120 iso 1174contains18 x 12in 6 point dynamic drive sockets 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 27 30 32mm1 x 12in extension bar 125mm1 x 12in extension bar 250mm1 x 12in universal joint 1 x 12in t adaptor 1 x 12in flexible handle 250mm1 x 12in 54 tooth