Squirt bottle to cool it and help clear the dust away didn't take much and made a drastic difference in cut quality and speed.
I believe its a diamond hole saw. Ill have to ask my wife where she got it.
To hang them, the small one has welding wire pushed through the cork. Rolled up on the inside so it can't pull out and just a loop on top. One of the others has wire just wrapped around the neck and a loop. Wife has to choose the style she wants and do the other two.
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