This T-square has been a lifesaver for MY woodworking projects .Industrial and scientific in design, it's made of sturdy aluminum and is the perfect thickness for accurate measurements. Through trial and error, I found that its great for marking and cutting straight lines on large pieces of wood. The only con is that it's a bit heavy to carry around, but that's a small price to pay for such precision. Overall, i highly recommend this product for anyone who needs reliable dimensional measurement tools..