168 piece, mechanics tool set, 72 tooth ratchets,6 point sockets,1/4" drive accessories include: ratchet, sockets 5/32",3/16",7/32",1/4",9/32",5/16",11/32",3/8",7/16",1/2",4 mm,4.5 mm,5 mm, 5.5 mm,6 mm,7 mm,8 mm,9 mm,10 mm,11 mm,12 mm,13 mm, deep sockets 5/16",11/32",3/8",7/16",1/2", 9 mm,10 mm,11 mm,12 mm,13 mm,6" extension universal joint,3/8" drive accessories: sockets 5/16",3/8",7/16",1/2",9/16",5/8",11/16",3/4",13/16",7/8",10 mm,11 mm,12 mm,13 mm,14 mm,15 mm,16 mm,17 mm,18 mm,19 mm, deep sockets 5/8",11/16",3/4",13/16",7/8",15 mm,16 mm,17 mm,18 mm,19 mm, spark plug sockets 5/8",3/4", 3/8"x1/4" adapter,6" extension, universal joint,1/2" drive accessories: ratchet, sockets 1/2",9/16",5/8", 11/16",3/4",13/16",7/8",15/16",12 mm,13 mm,14 mm,15 mm,17 mm,18 mm,19 mm,21 mm,5" extension, universal joint, combination wrenches: 5/16",3/8",7/16",1/2",9/16",5/8",10 mm,11 mm,12 mm,14 mm,15 mm,16 mm,(28) sae/metric hex keys, nut driver bits: 5/32",3/16",7/32",1/4",9/32",5/16",11/32",3/8",7/16",