I have absolutely never had a reason to complain about Spertzels, until now. My d string keeps snapping, right at the tuner, whenever I have to do more than a cursory movement with the thing. I'm currently intonating my guitar, and I have just snapped my third d string. It is only on this string, and now I am done for the night, since I am officially out of .26 gauge strings. :/
Has anyone ever had a bur on a tuning machine before? If that is what it is, I have no fucking clue how to get inside of the post an smooth it out.
Twist up a little bit of really high grit sandpaper, stick in hole, twirl around?