Coping Saw: Bent Frame, Pinned Blade and Handle

A coping saw is a thin, hardened steel blade stretched between the ends of a springy U-shaped frame with a handle. The frame is bent from metal bar stock or tubing. At each free end an anchor bolt with a slot and a notch holds the blade: the blade has a small cross pin near each end that seats in the notch. One anchor bolt's threaded shank runs into the handle, so tightening the handle tensions the blade and locks it at the chosen angle.