I was given an anvil about 10 years ago which was badly swaybacked and gouged up and so I built it back up with hardfacing rod. I was able to clamp some aluminum to the sides of the face so that I could run the bead right up to the edge, but my attempts to put some sort of backing into the hardy and pritchel holes was a flop Now there is some overflow into both of them. I recently got back into the fire after perhaps 6 or 8 years a few weeks ago and remembered how much I loved it. Now I'd like to dress those holes if I can. McMaster-Carr sells a
1/8" shank cubic boron nitride grinding bit for hard metals which are suitable for my dremel tool. However, it recommends a sulpho-chlorinated oil coolant. Since I am not going to be able to flood the workpiece, how should I proceed? Drip a little on, grind a little, rinse, lather, repeat? What is a good brand of coolant to use here? Do I also need to wear a respirator in addition to safety glasses?Thanks for your help, Rob