Top Quality tool! Made very well, works like a charm. This is a precision tool so you'll want to find a safe place to store it and not toss it in your toolbox. We all know that there are very few true 90 degree corners, but you'll be surprised just how far off many corners really are. This tool brings a new level of accuracy to your work and it shows in the finished product. Don't know how I got along without one for so long. I feel it's well worth the price.