I tried Pferd cutting discs a couple years ago and never looked back. Even though they cost more than the others they are actually cheaper when you take into account how long they last. Just as an experiment I was cutting all the way around a 16" pipe, 1/4" thick. I started with a PFX and got between 1/4 and 1/3 of the way around and it was gone. Put on a Pferd and finished the rest with 1 disc. I have never had a Pferd explode either, not sure if they will but I am guessing not.