Spent two-headed wrench refers to the specifications of the two adjacent ends of the head and the middle of the handle opening ceremony, opening in a surface of each opening ceremony of the head of the level of scattered distribution of two working faces, constitute two neighboring specifications opening due to a surface of the wrench each opening level of two working faces scattered distribution, so a wrench head specifications form two adjacent bayonet, can accommodate two sizes of nut or bolt, one such structure spanner is equivalent to two ordinary spanner can be adapted in four different sizes of nut or bolt, the working efficiency is improved. for mobile operations are concerned, especially aerial work more convenient to carry and reduces replacement Time tool specifications: 5.5 * 7-50 * 55 45 # high quality steel products using advanced processing technology production, chrome plated, forging process, the heat treatment, the quality of high-I plant a variety of customized shaped wrench. Welcome to the new and old customers to order call us. Long http://www.hbbtglj.com/tzbs/