When you need to really hammer something, nothing beats the power of an air hammer. With a chisel it will can cut through old welds in body panels like scissors through paper. Replace the chisel with a body hammer and knock out dents in like you were ironing the wrinkles in a dress shirt. With the right attachments they are also great for splitting rusted up fasteners, installing new valve guides and much, much more. Eastwood has just the hammers, starter kits with a hammer and basic attachments, or full blown kits with everything you need all in one handy plastic case.