Replies

1. 
   saschafer | Jun 30, 2008 08:48pm | #1

   I've never seen a diamond stone rust. As far as I know, the backing is nickel, which doesn't rust. What I have seen is rust stains on a diamond stone, not from the stone itself, but from the steel swarf removed from whatever it is you're sharpening. Those stains can be hard to remove, but they're not indicative of any harm coming to the stone.

   I'll sometimes use a diamond stone dry when sharpening a pair of scissors, a gardening tool, etc. But I usually use water with woodworking tools, not so much for lubrication (although there is some), but rather for dust control.

   -Steve

    

2. 
   flairwoodworks | Jul 01, 2008 03:52am | #2

   I second Steve's reply.

   Chris @ www.flairwoodwork.spaces.live.com

    - Success is not the key to happines.  Happiness is the key to success.  If you love what you are doing, you will be successful. - Albert Schweitzer

3. 
   derekcohen | Jul 01, 2008 06:39am | #3

   Hi Doug

   I have the 10" DMT Duosharp. The Extra Coarse side is used to flatten my waterstones so, as you may expect, it get wet a lot! Sometimes it lies in a wet state in preparation. There has never been any sign of rust in 18 months of use.

   Regards from Perth

   Derek

1. 
   woodenhead | Jul 01, 2008 10:02pm | #5

   Do you use your diamond stones to sharpen your hand tools, if so which ones work best?

1. 
   derekcohen | Jul 02, 2008 03:31am | #6

   WD

   I do not/cannot "sharpen" blades with diamond stones as mine only go up to 1200 grit (extra fine). The Coarse - fine might best be considered grinding media. They prepare the surface for smoothing waterstones, or do the initial preparation of the backs of blades. I have used, on the other hand, diamond paste up to .5 microns, but that is a different issue.

   Regards from Perth

   Derek

4. 
   WillGeorge | Jul 01, 2008 09:00pm | #4

   Nothing hurts the diamonds.. The binder counts.. Why not ask the folks that made them!

5. 
   paretsky | Jul 02, 2008 09:57pm | #7

   per the instructions on the packaging from DMT on the stone I bought, use only water, nothing else. I don't know what will happen if you use something else, but I suspect it might break down the binder that holds the diamonds to the plate.

   "Light the lamp, not the rat! Light the lamp, not the rat!!"
   Rizzo the Rat, A Muppet Christmas Carol
6. 
   troys | Jul 02, 2008 10:22pm | #8

   I use water on mine (3M and a DMT) They have some stains but it does note seem to effect the way they work. When I am done with them I scrub them off with an old kitchen sponge with the course surface. and let them dry. Hope that helps.

   Troy

1. 
   GDH2 | Jul 03, 2008 12:41am | #9

   Thanks, all - you've killd my fear of water!Doug
   The Wood Loon
   Acton, MA