A couple of days ago, I needed to cut 2 pieces of 8mm OD steel shaft, in order to make the Z-axis guides for my CNC Mk3.
I could probably cut them using the hacksaw or even by using just the dremel with a disk cutter. I indeed used the dremel with a disk cutter, but in conjunction with that, I decided to put the steel rod on my cordless drill and spin it while cutting it. Just for the fun of it and to make the cuts as straight as possible.
The result was as expected! 🙂