Foredom handpiece mystery


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!
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rockhound wrote:

looks like one of the quick change handpieces, designed for changing the burr while the motor is running.
those were expensive beasts, as I recall...
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rockhound wrote:

if you go to foredom's site you can download a pdf of their current catalog.
<http://www.blackstoneind.com/foundations/store/documentwarehouse/documents/301Catalog_AllPages_May2006.PDF or: <http://tinyurl.com/n2ku2
in it there is no no. 7 handpiece. however, there is a no. 15 handpiece, which is a teeny tiny jackhammer (more or less). it also has a picture of the pionts used by that handpiece. think they might fit your machine?
foredom does not make all of the handpieces they sell. I have a very nice one made by some outfit in germany, branded foredom, but obviously not their manufacture. the no. 7 may be one made by some third party who went titsup sometime in the past. it would be interesting to find out the history of your mystery handpiece. you might give foredom a call- somebody there may have some information for you.
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On Sun, 30 Jul 2006 2:26:52 -0700, snipped-for-privacy@yahoo.com wrote

OK I figured out how the collet works. This is definately a rotary piece not the tiny hammer. Thanks for the info. By the way, RE: country of origin, it's marked Austria.
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OK, found it. from www.habsons.com:
"34-232-2 | FOREDOM HANDPIECE #7 | IN CART: 0 | PRICE: $279.89 Features an ultra thin tapered shape and quick release push/pull collet. Ideal for continuous use at speeds up to 10,000 rpm and for intermittent use at higher speeds. Suitable for use with 3/32 shank burs or mandrels only.
* Items are all in Canadian currency
If you have any questions or comments please contact us at 604-708-9700."
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On Sun, 30 Jul 2006 2:41:35 -0700, snipped-for-privacy@yahoo.com wrote

Thank you! Wow this is a spendy little sucker!
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rockhound wrote:

if it's anything like the one I have, and I think it probably is, you'll find it an absolute joy to work with- as long as you stay within it's fairly narrow performance envelope. it is for delicate work at high speed using sharp cutters on non abrasive materials. since the collet is machined directly into the shaft, it will run very very true..... note however, that the collet in not serviceable- if you damage the collet the handpiece is dead. so don't try to use it for hogging out, don't run cheap bits in it and keep the collet clean- and you'll figure out that cleaning that collet isn't easy, either.
nice score. have fun with it...
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