Review on Precision Measuring: OLI Stainless Protractor for Woodworking Construction by Wesley Sharp

Angle viewfinder is good, nothing outstanding but good price. As others who have purchased this device have pointed out, it has sharp edges. After setting the angle, it doesn't tighten as much as I'd like, so sometimes I lose the exact angle and have to measure again. It can be set (zeroed) to measure an inside or outside corner, which is very useful when making baseboards or creating something with inside and outside corners/edges.