There is a lot to write, but the instructions must be read often. once before and several times during use because it has too many functions and they need to be used in a different order depending on the cleaning process. After I finished the dust collector I moved on to the Auger 6 foot rotary drill which usually gets the job done. Thorough cleaning is bullshit, but just flushing through the inlet/outlet plugs until it's all busted does at least some good. However, like all spring drills, it does not remove solids. Pretty durable and hits a good shot with no issues. It's good to have and sometimes you're lucky, sometimes it's a lot more painful, in which case you should call the Roto guy. Let's face it, 25 feet of this type of wire/spring leaves a lot of room for tangles, messes, headaches, and once it's out of the hole it's a very dangerous whipping coil spring that hurts like hell when it hits you. Receives the eye, say "goodbye to the eye".