The Milwaukee Tool 1/2" Drive 22-pc Ratchet and Socket Set – SAE, No. 48-22-9410, features a four flat side design that stops rolling and allows the sockets to be used with a wrench. The 90 tooth ratchet tool delivers four degrees of arc swing and a slim profile design, allowing the user to work in tighter, more confined spaces. All sockets are engraved with sizing for lasting readability, and the set is arranged in a removable inner tray for easy storage. The ratchet and socket set comes with a lifetime guarantee.