Its usually a rotary tool that's similar to a dentist handpiece to remove decay. My guess is the grs 850 ultra or presto handpiece. If neither one is it my second guess would be a NSK tool.

@@classicuniquegifts9704 Cool. Appreciate the info. Always looking for tools that make things a little easier. Thanks.

What burr are you using?? Thank you

Steve's thread from the EngravingForum.com link (at the top) shows "The one I use now is a NSK Presto. "

I believe it's a 1/16 friction bur with 4 sides. I dont know exactly and I could be wrong but there is a video on airgraver.com demonstrating the sharpening of the bur and the gentlemen who makes a template for the bur. I would go check it because if this is the bur that was demonstrated in that video it has lots of advantages being such a fine point. Hope this helps!👍

@@classicuniquegifts9704 Hello! Please give me a link to this video. I searched the site and did not find ...

@@PravMir79 go to airgraver.com and click on graver sharpening. I believe Its under the colored bands used for gravers. Its a little template that takes 1/16 carbide rods. www.airgraver.com/sharpening.htm