[lovehamr]

From performance unlimited:

Muther Thumpin! TIP #2: After a lot of hard use, the soft face of the head of the hammer can become rough in appearance. This is to be expected and it still will deliver harmless performance to the much harder spinner material. You can simply use the other side of the hammer to extend perfect contact operation. To rejuvinate your Muther Thumper™ for extended use, you can simply heat the face with a torch to remelt the surface smooth. Or you can "sand" the face smooth again on a belt or disc sander, and in extreme situations, just cut the face off with a hack saw leaving as much remaining led on as possible. Since the head of the Muther Thumper™ is quite long in length, there is more than enough material for several refacings as time goes on, significantly extending the life of the tool far longer than other shorter, stubby hammers!

Steve