1. 
   Jackhammer
   [comics] Jackhammer (Matthew Banham){Fact|date=March 2008} is a fictional character from the Marvel Comics universe. ==Publication history== Jackhammer was first mentioned as a HYDRA leader in Daredevil #121; he first appeared in Daredevil #123 (July 1975) and was created by Tony Isabella an...
   Found op http://en.wikipedia.org/wiki/Jackhammer_(comics)
   
   
2. 
   Jackhammer
   A jackhammer is a pneumatic tool that combines a hammer directly with a chisel that was invented by Charles Brady King. Hand-held jackhammers are typically powered by compressed air, but some use electric motors. Larger jackhammers, such as rig mounted hammers used on construction machinery, are us...
   Found op http://en.wikipedia.org/wiki/Jackhammer
   
   
3. 
   jackhammer
   1) Air hammer 2) Hammer 3) Heavy-duty drill 4) It pounds the pavement 5) Mc's long-lost construction worker son? 6) Men's club craftsman? 7) Pneumatic hammer 8) Power hammer 9) Rock-drilling tool
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/jackhammer/1
   
   

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