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• You never know what you’ll find at an auction. This heavy-duty iron pipe cutter came autographed by Tony Stewart, a famous race car driver sponsored by The Home Depot. This fact was not noted in the auction listing, so I got it for nothing more than it’s worth as a pipe cutter. Is there another like it in the world? Who knows—make me an offer if you’re a Tony Stewart fan!

• This exhaust pipe cutter is delicate compared to a normal pipe cutter, but that’s OK because exhaust pipes have very thin walls compared to water pipe.

• If you need more leverage than a tiny pipe cutter allows, but you don’t have room for a longer handle, this clever ratchet handle turns the cutter for you, like a ratchet wrench handle turns a socket wrench. The baby cutter it comes with is clever in another way: it automatically tightens itself as you turn it around the pipe.

• Heavy pipe cutter for ductile iron pipe between 4 and 6 inches in diameter.

• The long bar in this cutter adjusts more quickly than the standard design, but means the tool is only strong enough for plastic or thin-walled metal pipe.

• Tubing cutter for plastic water line up to about 2 inches diameter.

• Add some carbide cutting disks to a chain wrench and you have a tool designed for cutting cast iron drain pipes, but also used in rock shops to break open geodes (round, hollow rocks with interesting crystal formations inside). Rocks, like cast-iron pipes, are very hard, and they don’t bend: they only break if stressed too much. You don’t turn it around, cutting deeper and deeper. Instead it stays stationary, and you just make it tighter and tighter until the pipe, or the rock, cracks.

• Geode cut with a cast iron pipe cutter.

• These tiny pipe cutters are great for small-diameter copper pipes, and for working in areas where there is very little space around the pipe (which is common since pipes are often run next to each other, and through holes in studs that keep them close to a wall surface).

• Battery-powered tubing cutter for plastic water line or...other things.

• PIpe Cutter

• Regular size pipe cutters.

• This pipe cutter is designated for cutting conduit (metal pipe that is thinner than plumbing pipe, and used to protect electrical wiring).

• The fun of buying a geode in a rock shop is that you never know what’s inside until they crack or slice it open for you. It might be solid and boring, or it might have a beautiful crystal cave inside. Look for one that seems light for its size: an interesting hollow rock naturally weighs less than a solid one.

• Pipe Cutter

• Pipe cutter mounted in a rock shop selling geodes.

Do you have a better example of this kind of tool? Let me know by leaving a comment, and include a picture of it if you can so everyone can see!