Am tech 52 piece ratchet drive socket set triple chrome plated for added durability and supplied in blow moulded storagecarry case 38 drive contents 1 reversible ratchet handle 1 3 extension bar 1 spin disc 1 58 spark plug socket 3 6pt sae sockets 716 12 916 3 6pt metric sockets 11 12 and 13mm 1 38 to 14 drive adaptor 12 drive contents 1 reversible ratchet handle 4 6pt metric sockets 16 17 18 and 21mm 14 drive contents 1 spinner handle 12 6pt sae s