Sealey 22 piece socket set 3 4 sq drive walldrive duometric sealey premier ak259 crv duometric socket selection covers 27 metric and imperial sizes made entirely from chrome vanadium steel this set features heat treated duometric walldrive sockets with high chrome finish ratchet features heavily knurled grip and twist reverse mechanism supplied in metal storage case sealey ak259 crv socket set 22pc 3 4 sq drive walldrive duometric