I just can't seem to find a grinder that works for me. I currently use the Microplane Herb Mill shown in the pic below and I love it. Only 2 problems. They are cheap as crap and I break one about once a month. And, my old arthritic hands are making it harder and harder to do stuff like this so I need something electric. I don't mind a little ghetto adapting. I can do that. Here is what I DON'T want.... Anything that spins fast. Coffee grinders, blenders, food processors... all that stuff that has a fast spinning blade is out. You would be amazed at how many trics are lost (and worse yet, damaged) like that. I would no more chop my pot at high speed like that before smoking it than I would vigorously shake a fine bottle of wine before drinking it. So, it has to spin slow. Like I said, I can ghetto in a power source. The quickest and simplest thing that comes to mind is to make is adaptable to a power screwdriver. I have a bunch of those (and some extra motors from old ones) that I can rig something up to power it. No plastic. It just doesn't hold up. That's the main problem with my current grinder. Plastic parts break quickly under my industrial use. LOL Actually, I only grind about 4 or 5 grams at a time. That's about enough for 8 or 10 joints. I'll do that 2 or 3 times a day. So, I don't need a giant 4 ounce setup. For the same reason I wouldn't open 5 bottles of fine wine and let then sit for 5 days while I drink them. I usually smoke my pot within hours of grinding and I notice a huge difference in flavor vs older grinds. So, something kind of small. I have tried the real common metal grinders and they work about a 5 on a scale of 10. Not bad. Real real hard on the hands. And, they really don't do enough at a time. Do a search of herb grinders and those things show up like a rash. They must be really popular. I have seen a few that look like skulls or hand grenades but nothing big enough to hole an eighth. Or, even close. Good for one joint grinds. So, I don't know what else to add. Wah, wah. OK, I added a little MORE whine. LOL Still, I am open for suggestions on what you use or what you think I should use.