Spitting TIG weld makes me spittin' mad

[parsonsj]

Hmmm. I don't have a tungsten only grinding wheel. Never have. Maybe I should? Perhaps the belt sander/drill method will work for a couple of reasons.

What is "sharpening chemical"?

Your story reminds me of when my father-in-law used my shop vac ... without the filter. Or when he turned on the main water supply while I was at Home Depot buying replacement valves. Or when he used my screwdrivers to stir paint. Or when he used my framing nails to hang pictures.