I really couldn't tell what went where so I just had to start building. As expected, everything will be clear after you're done, but it would be nice to have some illustrations. In the end he had my coffee grinder under control and I have complete confidence in the results. A few photos attached so others can see how it all fits together. All equipment included and complete. Two sets of two sizes of grinding head screws with plastic bushings for the smaller size are included.