Pounding on punches that just aren't punching clean just doesn't make sense. How can a punch that is flattened with a hammer pentrate the die properly? The Formtech line hole peen punch causes the punch to expand to fit the die without smashing it or affecting the amount of penetration. It has a sleeve that centers the punch over the worn punch so that you can quickly peen it the right way.
Every Press Operator should have one in his tool kit!