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.
π Dioxide Controller for Digital Gas Monitoring
5 Review
π¬οΈ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review
π Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
6 Review
π‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review