The spot hammer welds directly onto the work area and pulls the dent. To release, simply twist the hammer sideways, reposition, weld, and pull again. This procedure is by far the fastest dent pulling system on the market, and no consumable washers or studs are needed. A spot hammer weld leaves no hole after the procedure, just a smooth, dent free surface. When more pulling power is needed, simply increase the current. The replaceable welding tip on the Spot Hammer tip will last for over one thousand welds. Use spot hammer fon any dent.