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Ultrasonic Drills


#1

Hi,

Several questions for my learned associates.

Who manufactures ultrasonic drilling units?
How big and industrial do they get?
Are they used in any other industries?
Approximately how fast will they drill a 4 mm hole thru 1/2" of
marble? Granite? Quartz?
Any help would be appreciated.
Thanks in advance and best wishes
cj

Gemstone Brockerage Associates Ltd. Telephone (518) 438-5487
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New York 12208
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