#spanner__wrench  a hand tool that is used to hold or twist a nut or bolt
  supertype:  hand_tool  a tool used with workers' hands
  part:  jaws
  subtype:  adjustable_wrench__adjustable_spanner  can be changed to different settings
     subtype:  monkeywrench__monkey_wrench  adjustable wrench that has one fixed and one adjustable jaw
     subtype:  pipe_wrench__tube_wrench  adjustable wrench for gripping and turning a pipe; has two serrated jaws that are adjusted to grip the pipe
        subtype:  chain_tongs__chaintong__chain_wrench__chainwrench  a pipe wrench used for turning large pipes; an adjustable chain circles the pipe with its ends connected to the head whose teeth engage the pipe
        subtype:  Stillson_wrench  a large pipe wrench with L-shaped adjustable jaws that tighten as pressure on the handle is increased
     subtype:  screw_wrench__screwwrench  adjustable wrench that has one jaw that can be adjusted by turning a screw
  subtype:  Allen_wrench  a wrench for Allen screws
  subtype:  alligator_wrench__alligatorwrench  a wrench with a V-shaped jaw and serrations on one side (resembles the open jaws of an alligator)
  subtype:  box_wrench__boxwrench__box_end_wrench__boxendwrench  a wrench with a closed loop (a socket) that fits over a nut or bolt head
  subtype:  brace_wrench__bracewrench  a wrench shaped like a brace (has a handle shaped like a crank) and a socket head
  subtype:  bulldog_wrench__bulldogwrench  a wrench designed to provide a firm grip on something
  subtype:  carriage_wrench  a wrench designed for use with carriage bolts
  subtype:  dog_wrench__dogwrench  a wrench with a handle shaped like a crank
  subtype:  hook_wrench__hook_spanner  a wrench with a hook that fits over a nut or bolt head
  subtype:  lug_wrench__lugwrench  a wrench with jaws that have projecting lugs to engage the object that is to be rotated
  subtype:  open-end_wrench__tappet_wrench  a wrench having parallel jaws at fixed separation (often on both ends of the handle)
     subtype:  S_wrench  a wrench with an S-shaped handle
  subtype:  pin_wrench__pinwrench  a wrench that has a projecting pin that fits into a socket on the object to be turned
  subtype:  screw_key__screwkey  a wrench for turning a screw
  subtype:  socket_wrench  a wrench with a handle onto which sockets of different sizes can be fitted
  subtype:  sparkplug_wrench__sparkplugwrench  a wrench for removing or tightening spark plugs into the cylinder head of an internal combustion engine
  subtype:  tap_wrench__tapwrench  a wrench for turning a tap to create an internal screw thread
  subtype:  torque_wrench  a wrench that has a gauge that indicates the amount of torque being applied

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