We’ve always liked this type of cutter because it looks a little like a flail or ancient weapon. What it really is is the KD 2031 Exhaust Pipe Cutter and it’s on sale for $25.99 right now at Automotive Tools Online.
An interesting way to cut exhaust tubing, the KD 2031 is basically a chain wrench with pipe cutter blades at every link join. The product description says it only needs a quarter turn to cut through pipes, but it seems to us it should be even less. Comparing it with the Lisle Cutoff Tool it’s hard to say which one works better.
KD 2031 Exhaust Pipe Cutter [Automotive Tools Online]