I like the idea of grinding coffee by hand, but most of the hand crank grinders that I have tried have been hard to turn, hard to hold, inefficient in moving beans through (too wide and shallow for the unground bean bin), or otherwise awkward.
About a year ago I found this Japanese model that meets my concerns. It is a light, 11.2 oz., easy to turn conical burr coffee grinder. At about $45 it is not the cheapest but it is the easiest for me to use two or three times a day. It works so well for me that I bought a second one for grinding seeds (mostly fennel and flax, which I mix in with my morning oatmeal). This model is particularly useful for those with smaller hands (like me).
— Lon Levy
Porlex JP-30 Stainless Steel Coffee Grinder
Available from Amazon