SAE & Metric Ratchet & Socket Set, 47 Pcs, 1/2" Drive Size, DeepOffers better access in tight spaces and maximum tool strength The 90 tooth ratchet tool offers 4 of arc swing and a slim profile design, so user can work in tighter spaces The Milwaukee socket set features an innovative wrench compatible socket design with Four Flat sides to help prevent rolling Sockets are stamped with metric and SAE measurements on the flat side for easy to read visibility Optimized socket geometry additionally helps reduce bolt