I work in a taconite concentrator and am looking for some wrenches to put out on the floor in certain areas for some repetitive maintenance tasks. There are two bolt head sizes that I need to cover. Does anybody make a double box wrench that is 15/16" on one end and 3/4" on the other? I have tried looking online and haven't had any luck yet. If I can find a supplier I'd like to have two double ended wrenches instead of 4 combination wrenches to put in each area.