Review on Moonbiffy Digital Protractor Stainless Woodworking by Alex Barr

Very accurate, ie up to a quarter of a degree. One day after use - overall I'm happy with this addition to my tool. Crate. There is a star deduction for: - The edges of the ruler are sharp as blades. Some new scissors are not that sharp. After writing it, I actually tied it to cutting paper - a nice sharp cut. I have to take care of this. The lock nut engages and rotates with the top blade. It will tighten or loosen on its own as you go around corners. Not a big deal, but certainly less comfortable than constant rubbing. Came without a battery. The type is not mentioned in the packaging. I believe it's the ubiquitous 2032, but it was very difficult to put in, feels like the case is about to crack. Maybe it's 2022?