Works perfectly as an adjustable stop/right angle set for my tile saw for doing repetitive cuts. It is small enough that it does not interfere with the table movement or the saw frame. The rotating holding clamps allows flexibility to clamp on uneven or variable surfaces. The square itself is solid aluminum and all components, except the knobs, are metal. As the tile saw blade uses water when cutting tile everything gets wet, it will be interesting to see if the aluminum can handle it, but the anodized coating should hold up well, and I would not hesitate to buy again if it should show any signs of corrosion. Would definitely recommend for any application needing a clamped square.
Ángel Laguna 
