Prices of manual coffee grinders range from around 10 to well over 100. Inexpensive: You can buy a basic manual coffee grinder for between 10 and 30. The cheapest of these might not have many features, but you can find some decent models in this price range. They generally have conical steel burrs and a fairly small capacity.
The most popular type is the blade grinder, as these are cheap but do a good enough job. Burr grinders do a better job but are more expensive. The bean to cup machines come with a builtin grinder, but are rather expensive to buy. The manual or hand grinders work well, but are slow and take a .