I always used a combination square, framing square or a speed square for most applications. These days I'm in the shop more, so I wanted to get a set of these machinists squares. Seems like everybody had these except me. Well this set is fantastic. There's one or the other at every station in my shop now, since I'm finding myriad uses for them. They seem to be dead accurate, and I'm sure they'll last forever. Thanks Grizzly!