They sat for a while before I began to appreciate their usefulness. I make beautiful boxes. It's a quick and easy way to cut the perfect line for edge bonding or cut grooves for inserts. They hold tight and won't damage any of the surfaces. I wish I could clamp a thicker piece as they seem to have a maximum thickness of about half an inch. I might buy another pair and pick them up when I mount them. A smart, useful device when you need to work on fairly small details.