I've used these three times and there's not denying they are quality made item, but in every case I've to ream the holes in order for these bushings to fit. These are holes that either originally 10 mm or bored out to fit 10 mm sized tuners, so they are not, at least in my experience, drop in replacements.
Worth a couple of dollars to try fix my old TI calculator and it worked. I'm a happy customer.
NEW (6) Gotoh Vintage Tuner Adapter Bushings For 10mm Headstock Hole - NICKEL
Jun 25, 2017
A Useful Solution to A Common problem
Use these to replace modern size tuners with vintage style tuners with smaller string posts. The wider flange hides the scars from the previous tuner ring washers. I find Gotoh quality to be better than most comparable parts makers.