Although the initial Stringvision Keypeg set includes two keys, it's always a good idea to have a spare. This spare key is the only one compatible with the Keypeg system and is made from high-quality tool steel, with a 1/8-inch square that ensures durability and precision.
The attached keyring ensures that your tool is always within reach when you need it.
Additionally, the handle is a good size, making the tuning process easier.