Good heavy duty construction just as advertised. All steel makes them much more rugged than the cheap aluminum set I had. I am using these to finish off the edges of standing seam roofing. The narrow opening jaws makes it necessary to be meticulous with my first bending tool. Otherwise I can't open them wide enough to flatten out the metal. Also, I would like to have a longer handle so I don't have to squeeze so hard. It's rough on my old arthritic hands. It definitely mashes that metal though. It makes a nice looking finished fold on the 26 gauge steel roofing that I'm using.