A while ago we did a pretty comprehensive search for evidence that
such damage happens. There are a lot of urban legends, but seemingly
no real evidence that an ultrasonic cleaner that is typically used by
jewelers will cause any damage.
I have cleaned my own fingers in the ultrasonics that I have used
for 37 years. I see no evidence of damage. This is just a personal
Currently, when I am going to spend any real time at the wheels, I
will slip on some baby powder and a pair of nitrile gloves. Once in a
while the wheel may snatch a glove right off of my hand, but the
extent of that damage has never been more than to scare me. Nitrile
lasts longer and has less of a tendency to be snatched off than
Let me qualify what I am saying by pointing out that these are
personal experiences and you may experience something different.
Bruce D. Holmgrain
JA Certified Master Benchjeweler