My flex shaft rotary tools came with a speed control pedal. I got the two
I have from Harbor Freight and use Foredom hand pieces on them. (I prefer
the collets over the little drill chucks.) Unfortunately, I no longer see
them for sale at HF. Anybody else notice that the, "has everything cheap
store" doesn't have everything anymore, and the selection keeps getting
narrower and narrower. Anyway, they are very similar to this:
http://www.ebay.com/itm/42-Variable-...item2c770caa89
and they work fine for what they are.


The supplied Dremel collet only goes down to ~7/64". I think you need a
chuck to go smaller than that.

http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1

or

http://www.amazon.com/Gyros-45-01801...ef=pd_sim_hi_3