Hacksaw blades ganged together make a really useful file, one that can be as wide or narrow as you wish.
The blades may be full length or half-length. (Use a rotary tool to cut them in half). To bind the blades together, put a #6 machine screw through their mounting holes and add a nut. This file has the additional advantage of having smooth faces, unlike a regular file, so you don’t run the risk of cutting wood alongside the file.
I made my hacksaw-blade file when I got into a jam. I’d cut some box joints and put away the jig, only to find that a few of the notches weren’t deep enough. Eight half-length pieces cut from old blades saved my toast, and justified my having kept those things for so long! –Bill Wells
Here are some supplies and tools we find essential in our everyday work around the shop. We may receive a commission from sales referred by our links; however, we have carefully selected these products for their usefulness and quality.