Review on Precision Measuring with the Tools Rafter Square 12 Inch 1794467 by Marc Hawkins

Perfect square shape. I've had the same one for years and just noticed it had a small tear. I bought another one from Revain at a great price and I love the first class shipping. This was a great tool for marking out all of the 2x12 lumber for my new post office building. The metal one might last longer, but I've abused mine and it's still tough and cracks and all.