What are these bits?

[dubliner]

I forgot I had a bunch of these bits & other than fix dentures in about 30 years I'm not sure if I can use them for milling or cutting. I have an air turbine hand piece they fit , but they are 1/16th, 3/32nds & 7/64ths.The last is a perfect ball cutter @ 3/100ths of an inch! its 1 inch long, the others are 2"

7347
7348
7349

[Gary Campbell]

Nev..
They look like burrs (captain obvious here) Carbide or HSS? We use them a lot in our air or electric die grinders. (air dremmel tools) Dont wait 30 years..use them for dental work BEFORE they rust!
Gary

[centurion]

They are burrs, 3 out of the 4 appear to be burrs that are used for fiberglass.