Source: wikibot/tuning-wrench
= Tuning wrench
{wiki=Tuning_wrench}
A tuning wrench, often referred to in the context of musical instruments, is a specialized tool used to adjust and fine-tune the tension of strings on various instruments, such as pianos, guitars, and other stringed instruments. 1. **Pianos**: In the context of pianos, a tuning wrench (or tuning hammer) is used to adjust the tension of the piano strings by turning the tuning pins.