When we saw a body man using Steck’s right-angle “Seam Buster,” we instantly realized why we get such crappy results with a chisel. The chisel’s wedge is similar, but spot welds are almost never easily accessbile. The Buster’s shape is perfect for getting in those tight spaces like under fender wells and in trunk corners.
Before you comment, we realize that it’s a $30 steel stick with a foam grippy handle. But like many specialty tools, when you need it, you need it. You could get by with a less effective tool, but if you’re planning on replacing those old, rusted (or bashed) spot-welded panels, this’ll make your job a lot easier.