This is a JD Squared tube notcher for roll cages, etc. I used it for a 64 Fairlane Pro Street car I put together and loved it. Its in great shape and works flawlessly. I'll include the 1 1/2" hole saw bit as seen in the pic. I read about the paticular tube notcher in a Popular Hot Rodding magazine issue earlier this year and gave it a shot, you wont be dissapointed. It's very stable and holds the tube firmly without letting it walk around while notching. I paid $215 for it new, you can have it for $125 shipped!