Review on 📏 Grizzly H2993 Precision Machinists Square Set (4-Piece) by Todd Calloway

I'm not a locksmith. I use them in metalworking and welding. They used and abused my assembly table and horizontal band saw. Like many reviewers, I found this to be 100% accurate, but I didn't expect this from a cheap toolkit, and neither should you. In my opinion, I can buy the cheap ones, use them because they're good enough, and not worry about the abuse they get. Or I can buy expensive sets and constantly worry about ruining them. Think of it more like brake calipers. If you need something more accurate, use a micrometer you know and buy an expensive set.