Dusty Strings Universal Tuning Wrench

This extremely useful wrench has an easily adjustable tip that will fit any size harp tuning pin with a square, straight head. Pedal harps, lever harps, even antique harps can all be tuned with the same wrench, making it the ultimate tool for harpists with multiple instruments or for teachers whose students frequently forget to bring their wrenches to lessons! And if you've lost a tuning key and can't find a new one that's the right size, the Universal Wrench will work for you. No more rounding over the pins with tuning keys that don't quite fit or chewing them up with socket wrenches or pliers! Using the same ergonomic handle (made of maple) as our custom harp wrench, the Universal Wrench is comfortable in the hand and works like a charm.

Adjustable range: .160" (4mm) to .236" (6mm)

This wrench is meant for standard, square-headed harp pins, which go all the way through the neck of the harp and stick out on both sides.

These are some types of pins that are not a good fit with the Universal Wrench:

It does not work well on zither pins, which you can identify by their sloping shape (see photo below) and the fact that they stick out on only one side of the harp neck. These are often used on small harps like Harpsicles. Due to the tapered shape, the Universal Wrench will damage the pins over time, and it is recommended instead to use Dusty Strings hammered dulcimer tuning wrenches or Duo-Tune Zither.

It does not fit pins that have a non-square or flattened head (see photo below):

It does not fit pins that have a tapered head (see photo below):