
I'm sure there are good rafter angles out there too, I don't know but it's a pleasure to use and does the job well. I've been using cheap versions of these types of squares for years and found them to be good enough. When I gave my son this square for Christmas, I changed my mind and bought it for myself. It seems that the quality of hand tools, even more so than power tools, changes self-esteem about the quality of your work.