You've acquired a bunch of those little 1" long x 1/16" shank dental burrs, now what are you going to do with them? You don't have anything that will hold them. Instead of getting an adapter for your micromotor handpiece that takes you down to 1/16", use one of these adapters instead. With its 3/32" shank, it will fit right into a collet you already have. In addition to that, it will extend that short dental burr out further so you can reach into areas you couldn't reach if you put it directly into the handpiece.