The expensive hand grinders (james hoffman has a video if you search the tube) are all pretty good and pretty fast, unless you're trying to do an espresso grind. I have an aergrind and it does an aeropress grind of 15g of coffee in about a minute.
Hand grinder is only going to be fast enough for 1-2 cups though. Wilfa Svart or Baratza Encore are the cheapest options if you want to go faster/do more.
Drill setup definitely doesn't work.
The expensive hand grinders (james hoffman has a video if you search the tube) are all pretty good and pretty fast, unless you're trying to do an espresso grind. I have an aergrind and it does an aeropress grind of 15g of coffee in about a minute.
Hand grinder is only going to be fast enough for 1-2 cups though. Wilfa Svart or Baratza Encore are the cheapest options if you want to go faster/do more.