What portable tool can do this ?

What Portable Tool can do this in such and efficient and neat way? If there is one then I'd like it in my tool kit.







Took this image on a visit to my favourite car breakers. It's the Exhaust Downpipe from what was the Elbow to the Garrett T25 Turbocharger.



The down pipe looks double skinned. The much stripped car is an 03-Reg Rover 75 1.8t.

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