Review on 📐 Neoteck Horizontal Vertical Aluminum Protractor for Enhanced SEO by Lamar Hopkins

Works well for my purpose and I've also tested it on a known square object. It was right there. I wouldn't trust him to make parts for a spaceship, but he will for most things. The only complaint is that it runs on a 9 volt battery; and that's because most of my other devices run on AAA size batteries or watches. I need to keep a spare 9V in the drawer, but that's really not a deal breaker.