Make this 45 degree hand saw jig using handtools only. The jig can be made from any scrap material you have and two magnets. This is a really handy jig for installing trim. It allows you to do your cuts right where you’re installing the trim and not make a lot of dust and noise. The main body is roughly 6” long, 1” thick (you could easily use ¾”) and 1 ½ “ wide.