jaaks

I worked at Stanley Tools on the team that developed induction heat treating for hammers. First, the heat treating is not simple. and second, hammer heads can spall (chip off). Particularly hammer head repeated banged together! We did high speed camera pictures and found that repeated hitting head on head did cause cracks to occur and eventually pieces did fly off. Striking hammer to hammer was once common practice when attaching wire to fence posts. The induction heat treating largely eliminated the problem but NEVER bang hammer faces together. EVER! Mythtbusters not withstanding.