DF54 is a flat burr coffee grinder that incorporates the best features from the DF64 II but in a more compact design. DF54 was designed in mind to provide the best quality coffee grind in the entire coffee industry at this price point. We are confident that the DF54 triumphs as the market leader among other 40mm and 54mm grinders in the market which produce clumpy and uneven coffee grinds. For an even better grind, do consider the DF64 Gen 2 which produces a superior grind quality and grind speed.