watch crystal is hard, harder than steel, right?

I'm still betting that it would take some time to drill a hole in
glass with an eraser :)

alistair

On 22-Jun-11, at 8:04 AM, Loren Busch wrote:

>  RE: Toothpaste For Fine Polishing
> 50+ years ago used toothpaste the polish out a badly scarred plastic
> watch crystal, in fact still have that watch.  And would you believe
> also used toothpaste to polish the valve seat inside the mechanical
> fuel pump on a '60 Mercedes to keep it running because I didn't have
> the $50 for a new pump?
> But a warning:  Toothpaste on the market today may not do the job,
> different stuff coming out of the tube.  Guess that depends on the
> brand/style.  YMMV :)