While similar in size, the Ditting 804 and 807 series grinders are completely different from top to bottom with the ONE exception of grinding discs**. All electric components and housing are not interchangeable.
Both the Mahlkonig GH2 and Bunn G1 / G2 / G3 grinders are designed to grind a full bag of coffee at a time. Retail coffee grinders like these are for use in stores, cafes, and coffee roasters. What are the major differences between the two?