On Thu, 08 Jan 2004 04:17:11 GMT, "mkochsch"
20,000 rpm for the fastest Foredoms. Those are a properly mounted
Dremels (puny little pieces of crap) only spin at 30,000 rpm when
they're spinning freely. They also only claim 20,000 for the
flex-shaft versions. If you actually try it, you're lucky to reach
Most of the sub-Dremels with optional shafts recommend a maximum of
5,000 when using a flex shaft.
I'd use a router to drive a flex shaft (it's just a motor after all)
but I'd want some serious engineering of the shaft mount, and a
Foredom-like swivel to suspend the motor. Just shoving the inner core
into a collet and resting the motor on the bench is asking to get
If you _really_ need an ultra high speed tool with a tiny handpiece,
buy some second-hand dentistry and get an air drill.