On Nov 19, 2012, at 18:42 , Chuck Taylor  wrote:

> Mark Fortune wrote:
> 
>> >>  ... lots of different types, they are almost all badly dished with chips 
here and there, 
>> >> ...I love some of my old bench stones and want to get them propperly flat.
 I want a 
>> >> tidy solution - aggressive cut as there is a lot of material to move and w
as thinking 
>> of buying a diamond stone??? , any advice would be much appreciated.
> 
> > A diamond plate will do the job. I recommend the "XXC" ("Extra-Extra Course"
) model.
> > That's what finally worked for me. You still need to flush the swarf with wa
ter; I use
> a spray bottle of water with a little detergent added.

I use a DMT D11X Dia-Sharp plate, 220-grit to flatten and dress my oilstones,
with WD-40 as the fluid.  The sidewalk method worked for me too, but
I ended up with some grooves in a medium india stone from it.  YMMV.

Adam (unaffiliated with any company named herein, etc.)
Port Angeles, WA

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