Oh that's nice. Good idea. I usually just hold them in my hand and burn myself.

I want a sealed/vacuum widget for grinding these. Apparently tungsten dust inhalation is not the best. I don't use them very often, but thoriated rod dust is absolutely to be avoided. Thorium is an alpha emitter, which is about 10x worse than asbestos on the scale of junk I don't want in my lungs.