| 4 at least
I've got a thick pearl one that came with the kit, a right-angled one with an allen key at the other end. I got that for a gibralter rack I used to have but with the right angle it's great for tuning. I've got another with a clip and a tension tuning key that I bought before I figured out how to tune.
I'd like to get a speed winder to help with changing heads. |