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The distance a grand hammer falls after the point of letoff. Drop is controlled by the drop screw on the hammer assembly:

There are two types of drop screws, one is slotted and can be regulated with a small flathead screwdriver, the other is regulated with a barrel-tip:


How to Regulate Drop:

Recommended Tools:

Quality: PianoTek #D-13

High End: WNG Drop Screwdriver

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