you can use them but I would use scrap pieces of light ply between them and your part. for clamping small pieces or very long parts such as fuse doublers like was said here use books, or some type of flat weight. I use red bricks for flat parts on top of a book. look at your hardware store and get those adjustable type clamps you can apply the pressure you need and they have swivel ends at the jaws normally so you can clamp angles.