Product review (5 stars): This Thing Works Great!!!
My 22ft dryer vent needed cleaning real bad, and after reading the reviews I decided to order this kit and an extension kit to do the length of the pipe. Best cleaner for the money.
I made a drive adapter for my drill buy using a 2 inch long bolt the same thread size as the shaft. I cut the bolt head off to chuck it in the drill and added a couple of nuts on it to control thread depth into the shaft.
Just follow directions and have a good shop-vac to collect all the lint.
I had to clean out the vac a few times, just couldn't believe how much lint a 4 inch pipe can hold. This thing works great and the best bang for the buck.