I bought this wrench because of its Pierce Arrow logo stamp, its unusual configuration, and its low price. The open end is 3 3/4 inches wide. The closed hexagonal end is 1 1/2 inches across. the wrench is just under 11 inches in length.
The wrench's steel is 1/8 inch thick, and the openings have 3/16 inch lips on the underside. This wrench was designed to hold up, and not be distorted by use.
I would like to have some automotive expert opinions on the specific applications for this wrench. Was the large end used on a Pierce truck's or automobile's exhaust manifold, or on one these vehicle's hub caps? Did the smaller end tighten a gas cap nut, or something else?