This is an overview of the instructions that came with the grinder, not the grinder itself. Once I've used the grinder for a while I will give a further review. The "Owner's Manual” that came with the grinder contains parts, safety, and air supply information. But that says nothing about the actual use of the mill. Of course, how the grinder works is pretty obvious. But I would like more details. For example, there is a speed controller, but there is absolutely no information on how to use it. A wrench is included, but again there's no mention of how to use it. The sanding pad appears to come off, but there are no instructions on how to remove it. I've been looking for a more detailed guide (I don't need it) but haven't found anything yet. I'm amazed that a company like 3M doesn't have competent technical writers. I hope the mill is better than the hand mill.