From the patent-
"The object of my invention is to provide a reversible pocket-tool adapted, when made as herein shown, to form a hole in soft or hard wood and to insert a screw therein, the blade being readily reversible for this purpose and arranged to slip bodily into the handle, so that neither end shall protrude. The handle is of bent metal so formed as to have a tapering lateral opening entirely through it and forms a loose-fitting wrench for nuts of various sizes. This opening lightens the tool and is also convenient to hang it up by. The han dle and clamp peculiar to my invention are adapted to receive and hold a reversible or other blade or tool adapted to other purposes when provided with my holding means..."