EstWing CCBP47 47 Oz. Compocast Ball Peen
Estwing makes a number of different dead blow hammers, most of them more typical than this. But I've picked this particular hammer because it's a steel faced ball peen dead blow hammer. As best I know, Estwing is the only company using dead blow technology in a hammer that's something other than a mallet. By adding the moving shot weight to a ball peen hammer, they've created a tool which will produce much better results than a typical ball peen hammer or a typical dead blow hammer. While the face and ball peen are steel, the fact that it's a dead blow will eliminate the problem of any marring to your work surface caused by the head bouncing. This makes for a great combination. The head (other than the faces) and handle are encapsulated together in polyurethane which is oil and chemical resistant. I've selected their 47 ounce as my favorite, but they also have the same design available in 20, 36, and 50 ounce versions.