This has 1 Craftsman 10mm and has (2) 13 mm one doesnt have writing on it. Sk-USA is 3/8,7,8,9,11,13,14,16,17,18,19.The SK Tools 3/8" Dr Metric Socket Set is a vintage USA-made tool set designed for mechanics. This set includes sockets ranging from 7mm to 19mm, all with a 6-point design for a secure grip on nuts and bolts. The metal tray provides organization and storage for these high-quality SK sockets, making it a convenient and durable addition to any tool collection.