Review on Aluminium Positioning Squares for Woodworking and Carpentry by Kevin Apriando

I am so glad I bought it. They are very strong and allow the wood frame to be attached to the square, forcing the 2x4 to hold the square while the screws are tightened. The only reason I took off 1 star was because there was a dent on one edge preventing it from sitting flush with that face. A minute with a file fixed the problem but removed the beautiful red color.