This light hammer with replaceable heads keeps what it promises. Moderate impact with no surface damage. I used a nylon surface to remove enough sand to open a padlock box that had spent several years outdoors in a dusty environment. It was the perfect size and weight to keep the box sealed without the risk of sparks near the gas line. I let the heads air out in the sun for a day or two as they smelled strongly of solvent and mold release. in the delivery process. It has since settled in my toolbox until I have to tap a little more gently.