#hammer  a hand tool with a heavy rigid head and a handle; used to deliver an impulsive force by striking
  supertype:  #hand_tool  a tool used with workers' hands
  part:  #hammerhead  #head.striker
  subtype:  #ball-peen_hammer  a hammer with one round and one flat end; used in working metal
  subtype:  #bricklayer's_hammer  a hammer used in laying bricks
  subtype:  #carpenter's_hammer__carpenter'shammer__claw_hammer__clawhammer  a hammer with a cleft at one end for pulling nails
  subtype:  #mallet.hammer__beetle  a tool resembling a hammer but with a large head (usually wooden); used to drive wedges or ram down paving stones or for crushing or beating or flattening or smoothing
     subtype:  #carpenter's_mallet__carpenter'smallet  a short-handled mallet with a wooden head used to strike a chisel or wedge
     subtype:  #gavel__hammer  a small mallet used by a presiding officer or a judge
  subtype:  #maul__sledge__sledgehammer  a heavy long-handled hammer used to drive stakes or wedges
  subtype:  #plexor__plessor  (medicine) a small hammer with a rubber head used in percussive examinations of the chest and in testing reflexes
  subtype:  #tack_hammer  a light hammer that is used to drive tacks

No statement uses or specializes #hammer; click here to add one.