Start with. product is not heavy duty, but well made. Each rod has a snap connection. this make it worth the money. also the "mandrel" stays well in the chuck.. make sure you tighten it so you don't lose it down the chimney. Torque it down tight. There should be a tip list giving tips on what and what not to do. 1) you will be dealing with soot. a mask is recommended. 2) most houses are pressurized, or positive air flow, even on the roof, the soot will travel up towards you. a fan or blower behind you will drive it away from you. 3) Use a quality drill with forward and reverse. you will want to go both ways to get it clean. 4) Use old clothes.. they might not come clean. 5) put a disposable drape around the outside of your fireplace -in your house- to keep the falling soot from going inside your house. 6) if you are on the roof...connect the rods and start from the lowest part of the chimney... you will address the thicker soot first and it will get easier as you go. (more soot accumulates at the bottom). 7) don't be in a hurry. soot will just keep coming out as long as you keep spinning your drill. wait until it falls or flies past you. * I have a straight pipe and I did not try from the inside of the house up... no experience here.* Hope this is helpful..
Debra Collins 
