Mill assets include:
A bundle of wheat
A millstone (enclosed with hopper and chute)
A set of gears (to connect the water wheel to the millstone)
A water wheel
2 axle parts for flexibility
The water wheel and the gears are separate so you can position them where you need them. The horizontal axle is included in case you need a greater distance for the gears, the vertical axle is included if you want multiple floors up to the millstone portion of the machine.
1.1 update repacked for smaller size