Product review (5 stars): Does the job
I like this product very much.  It served the purpose as explained.  I have to buy addition extension.
Note to the users, when you are using for long duct outlet with drill attached, have someone to operate the drill and another one to guide the pipe inside the duct outlet.  Make sure there are no kids around and any fragile items near by the pipe, when you operate with drill the extension pipe/cord rotates with good speed and it is capable of breaking glass and other stuff.