Most applications of agraffes have been located at the near end of the strings, close to the tuning pins.
The instrument is tuned in accordance with the range of the singing voices, either by turning the tuning pin or moving the bridge.
The pinblock, which holds the tuning pins in place, is another area where toughness is important.
The tuning pins keep the strings taut and are held in place by friction.
The wrestplank is a multi-laminated block of wood into which the tuning pins are inserted.
Some instruments may have tuning pins (like a piano) installed, to make tuning easier.
When the tuning pins loosen, it usually needs other work, too.
Further, one cannot wrap silk strings around such tuning pins as they tend to break more easily at the wrapping end.
The tuner flicks the lever with his or her wrist, causing the weight to do the actual work of moving the tuning pin.
Each string is wound around a tuning pin, normally at the end of the string closer to the player.