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.