One of the screws broke inside the body of the guitar and is now stuck in there. Cheaping out on tuners ended up costing me more money than just getting quality tuners because I know have to pay my luthier to rectify the damage. Horrible, horrible mistake getting these tuners, wish I just got the fender ones I have on my other guitars, which work like a dream. These Harley Benton tuners are also very skippy - when turning them, on some parts they are loose, on some parts very stiff, which adds up to having a bad time tuning your guitar. I regret my purchase choice.