Definition of wrest plank in English:

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wrest plank

(also wrest block)

noun

The part of a piano or harpsichord holding the wrest pins.
Example sentences
  • This put intolerable strains on the casework, the string tension trying to pull the wrest plank closer to the soundboard.
  • A good wrest plank is vital to any piano, since it has to withstand the pull of up to 20 kg per string.
  • It is used to drive tuning pins into the wrest plank and prevents damage to the pins as well as to the case.

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