----- Original Message ----- 
From: "paul womack"  r = 2.5"
> 
> So that's the radius Stanley ground a #40 1/2 scrub blade to.


Sounds about right.  Similar to the L-N.  Nifty piece of 
investigative work, BTW.

> Wether it's the best radius is another question

I think it all depends on how deep you want each pass to go
to.  The more radius, the thicker and narrower the shaving 
we can take.

Cheers
Nuno Souto
nsouto@n...
http://www.users.bigpond.net.au/the_Den