3/8-inch drive, 72-gear teeth, quick-release ratchet. 3/8-inch and 1/4-inch drive, chrome vanadium sockets. SAE and Metric hex keys. Magnetic bit driver with full range of fastener bits. Durable storage case. Contents include: 3/8-inch 72-teeth ratchet, (16) 1/4-inch sockets, (11) 3/8-inch sockets, 3-inch extension, reducing adapter, magnetic bit driver, (30) Phillips, slotted torx, pozi, square and hex driver bits, (10) SAE and Metric nut driver bits, (18) SAE and Metric hex keys, storage case.