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 @67975218 ya those would be good. we have them at the hardware store i think.  that's a proprietary system with their dremel arbor though. whereas you can get some cheap ones from ali express with just a hole and generic arbor

they're not that dangerous, so if they shatter it might hurt a little- but this is why i wear eye protection plus face shield and gloves, and an apron, and and generally have no probs 
 @woodland creature :pleroma_fox_tan: is the dremel necessary. can i mount the arbor on a drill, or is that a bad idea 
 @67975218 dremel spins at about 20k rpm. a drill maybe 2k. yes you could try to use a drill but it might be slow and not work that well 
 @woodland creature :pleroma_fox_tan: ok ty, i think a dremel is better then