Became a general in a Jazz Bass Fender.
They work great. The holes do not line up exactly with F**der, but for a good price replacement, they're super smooth and stay in tune. I have them on 2 of my basses... they work great. Nice thick chrome too!
I just purchased an Epiphone EBO which came with loosey-goosey tuning machines (what would you expect for a $200 bass guitar). These tight tuners fit in perfectly without any cutting, drilling or filing. Now this extremely fast necked bass stays in tune all night long. Well, worth the price.
These seem to be identical to the tuners used by G&L and also by Sandberg. They are fantastic quality and would even be good value at twice the price!!! I also like the adjustable tension feature.