cutterhead

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English[edit]

The cutterhead of a tunnel boring machine

Etymology[edit]

cutter +‎ head

Noun[edit]

cutterhead (plural cutterheads)

  1. A rotating cylindrical cutting tool located at the head of a drill, boring machine, or the like.
    • 2022 December 14, Paul Stephen, “Network News: HS2's Dorothy starts to dig second tunnel bore”, in RAIL, number 972, page 22:
      The cutterhead, weighing 160 tonnes and with a ten-metre diameter, was moved by road in September.
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