You strike the metal near the dolly, while the dolly provides "rebound" from underneath. This is used for roughing out the shape and moving larger areas of metal without thinning it. Why Specialists Look for the "Bible" PDF

The "UPD" (Updated) versions of these manuals are highly sought after because they bridge the gap between vintage techniques (like using a slapper and spoon) and modern high-strength steels (HSS) found in today’s vehicles. Essential Tools for Metal Bumping

In panel beating, you generally want to reverse the damage in the opposite order it happened. You start at the edges of the dent (where the metal is under the most tension) and work your way toward the center (the point of impact). 3. Hammer and Dolly Techniques There are two primary ways to use your tools:

In the world of auto body repair, certain manuals have reached legendary status. These "Bibles" often contain:

In this guide, we’ll break down the core principles of metal bumping and why finding the right technical resources is the "key" to mastering the craft. What is Metal Bumping?