Grinding metal, I have a little overhead dust collector that uses a squirrel cage motor and A/C filters. It's amazing how dirty the filters get with airborne particulate.
I rough in my blanks with an angle grinder and I've moved that operation outdoors. Profile and grinding blades I use the bucket of water under the belt. And I've bought a decent respirator and extra filters. Amazing how much those filters catch. I constantly vacuum the floor with a shop vac. Difficult to keep that stuff under control so constantly cleaning helps keep it out of the rest of my house. (Shop is in basement)
I use a Delta dust collector for woodworking and use it when finishing my handles. I cringe with I hit the tang and send a few sparks into the hose. I probably should buy a dedicated shop vac or something for grinding the handles.
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