The Oxford English Dictionary’s first citation for the term spud wrench in print occurred in 1939 (though we were able to actually date a reference back to 1906). Per the OED, a book with the ...

The handle lets workers align bolts, rivets, and flange holes. Handles range from 12 to 29 in. and provide high leverage. There are three styles of wrenches. Open-end wrenches are made for speed.

The spud wrench can pull double duty. Casual home improvement projects don't usually call for a spud wrench, a tool that turns fasteners on one end and features a long, tapered spike on the other.