39 piece set of CRAFTSMAN Tools SAE & METRIC sockets. They 1/4 and 3/8 inch drive. Craftsman 39 pc 3/8 Drive in MM/SAE Socket Set has a wide variety of sockets. 19 pcs 1/4 dr. 20 pcs 3/8 dr. 1/4 dr 10 pc 5/32-1/2. 1/4 dr 9 pc 4-12mm. 3/8″ dr 11 pc 1/4-7/8″. 3/8: dr 14 pc 8-22mm.