Review on Accurate Angle Measurement Made Easy with General Tools Square Metal Protractor by Paul Newton

I can now get accurate edge angles when sharpening tools instead of guessing. I also used this to find the angle from my unmarked T-Bevel to transfer the cutting angles to the table saw. It matches my angles and plastic angle gauges, so I think it's accurate. This is the same sensor that Paul Sellers used in one of his YouTube videos. So if it's good enough for him, then it's of the utmost importance to me.