Re-Planet Waves Auto-Trim Locking Tuners
I remember the 1st time I put these on one of my guitars.. I was blown away! I have these on all 12 of my guitars now. I even had a 57' sorrento I had to route pockets in the back of the neck because necks were fatter then! Totally worth it. The sustain jumps through the roof with the weight of these.