Set contains: 3/8" drive ratchet, 3" and 6" extension bar, 5/8" and 13/16" spark plug socket. 12-point SAE sockets: 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", and 3/4". 12-point metric sockets: 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm. Combination wrenches: SAE - 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", and 5/8"; Metric: , 6mm, 8mm, 10mm, 12mm, 13mm, 14mm, 15mm. Magnetic bit driver. 44 insert bits, 13 SAE hex keys, and 13 metric hex keys. SAE nut bits: 7/16", 3/8", 1/4", 11/32", 7/32", and 3/16"; Metric nut bits: 6mm, 7mm, 8mm, 9mm, 10mm,and 11mm. All in a durable case.