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I have an air driven rotary handpiece I occasionally use. Must have
a compressor tho. Also I use the Gesswein air powered graver/hammer.
It was the best investment I ever made!Great control for setting
stones, particularly bezel and have bezels as well as channel
setting. The dental hand piece is limited to very small work and is
unlike any mechanical handpiece, but would be indispensable for
engraving on stone. any more info, you can contact me offline.
Thomas Blair CBJ*
Island Gold Works