Love this!
I was skeptical of it's bending ability.  I ran it through my wood burning furnace stove pipe with two almost 90 degree bends without any issue.  Then I took it outside where I only have about a foot of clearance for my cleanout and did the rest of the chimney.  I wish I had bought this years ago.  I highly recommend this product.  I used a half inch drill, no idea how it works on a smaller drill.
Rating: 5 stars