On 9/5/2011 6:55 AM, Ed Minch wrote:
>
> A question:  Are those spinning balls a flywheel, or a speed 
> regulator.  It seems that if the maker wanted a flywheel effect, the 
> cheapest and easiest way to get it is with a flywheel - one casting 
> that is fixed to the axle.  On the other hand, why regulate the speed 
> of a hand driven drill in such an elaborate manner?  And it doesn't 
> seem to be adjustable. So what were they thinking?

Is it possible they provide downward force on the shaft, to press the 
spinning bit into the wood?

- Bill T.
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