I need to shorten a pvc pipe (4" in diameter I believe), and I was wondering what would be the best way to cut it. The pipe is vertical and in a really tight space so it doesn't have a lot of clearence around it, so using a hand saw would be very difficult. I was wondering if you could use some sort of disk saw attachment for a powerdrill or maybe even a Dremel with a cutting disk. Thanks for any insight.