Re: [ATM] Quandry over steel washer tool

[Michael Wheatley <mwheatley@telus.net>]

I would expect the grinding action to be roughly proportional to 
contact area and pressure.  The contact ring around the edge of the 
pipe flange has less area and higher pressure.  In addition the 
softer steel would grip the abrasive.


At 03:34 PM 12/22/06 -0500, Mitch wrote:
>
>Just a thought though, doesn't a flange only have a small bottom ring
>grinding on the mirror? To me it would seem a "solid" tool, of the same
>diameter would be much faster, but common sense can sometimes fail us, any
>one care to comment?
>
>Mitch

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