The K Tool International (KTI) Double Eagle Head Wrench, No. KTI45105, is designed for universality, taking on most bolts and screws with just one tool. The eagle style mouth can fit 14-32mm or 9/16” to 1-1/4” and works on 70 percent of rounded bolts, says the company. The wrench can handle 19 different size screws, five kinds of bolts, and most rounded bolts. It has a two-year warranty.