Stanley Proto J1270A 7 Piece 12 Point Flex Head Wrench Set Set Includes: 3/8"; 7/16"; 1/2"; 9/16"; 5/8"; 11/16"; and 3/4" 12 point box end allows for fine indexing, helping to improve speed and access. Fits 4, 6, and 12 point fasteners. Heat-treated alloy steels produce a shank with high leverage Proto TorquePlus wrenches are ideal for use on stubborn or damaged fasteners, and also on fasteners made from soft materials. Satin finish provides corrosion resistance and a slip resistant grip.