My son bought me a drill Doctor x350 (or something like that) from Sears for Christmas.

Quick review. It works beyond great on good bits, the Harbor Freight ones, well, they are still junk on metal after you sharpen them.

I plan to make an adapter to do my tungsten on the same diamond stone in the drill Doctor. HF also has a bit sharpener that looks like it will work well too.

If you use thoriated at least you can keep the dust better contained, I would even tape the shavings collector as well.