Review on Precision Made Simple: PROTRAC06 6 Inch Marking Protractor for Accurate Measurements by Brian Fishel

I wish there was a Lexan protective case for it, it's too delicate to keep with other things and doesn't fit in the box after assembly. Its assembly is a bit cumbersome, but it's still a definite step up over the alternatives. The origin hole is so small that nothing fits in and nothing is provided to secure the origin to create 360 degree templates. I would buy the 360 degree version.