This set features The GearWrench 120XPT Ratchet. The Double-Stacked Pawl design delivers 120 Positions, exceeds ASME torque performance requirements and gives easy access to fasteners, delivering eXtreme Productivity. 3/8″ Drive 120XPT Ratchet, 3″ & 6 Extension, and Universal Joint. Standard Sockets:1/4″, 5/16″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″, 13/16″, 7/8″, 15/16″, 1 and 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm. Deep Sockets: 1/4″, 5/16″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″, 13/16″, 7/8 and 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm.