I bought a box of assorted burrs at a garage sale. There were two Foredom
handpieces in the box, one of witch I have not been able to find anything
about on the web. The mystery handpiece was in an original Foredom plastic
sleeve labeled "HANDPIECE NO. 7". As far as i can tell there is not a
conventional collet or chuck. The nose of the handpiece tapers to a pointed
snout with a aprox 7/64" hole.
If anyone has any info on this I would appreciate it. As I said google does
not even tell me that a #7 handpiece exists.
What is it designed for?
Is it discontinued and if so why?
Is it safe to use and if so how?
See a picture of the handpiece at:

http://handpiece.shutterfly.com

Thanks!