I bought the second product of this type, the first went back. It is very easy to use, works with different wood densities and is easy to read. It comes with a calibration certificate which I can't verify but for the materials I've used it on it seems to give reasonable results. Very satisfied.
Kapro - 353 Professional Ledge-It Try & Mitre Square - For Leveling And Measuring - Features Stainless Steel Blade, Retractable Ledge, And Etched Ruler Markings - 12 Inch
23 Review
π² Johnson RAS-1B Johnny Square: Professional Aluminum Rafter Square, 7'', Silver - Top Quality with 1 Square
8 Review
π Johnson Level and Tool 400EM-S 12-Inch Heavy Duty Metal Combination Square for Professionals, with Inch/Metric Measurements, Silver - 1 Square
8 Review
TV bracket Kromax DIX-18 black
52 Review