Shearing a long metal sheet - GIF

Shearing a long metal sheet.

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Previously:

https://www.homemadetools.net/forum/...736#post159659
https://www.homemadetools.net/forum/...879#post156456
https://www.homemadetools.net/forum/...811#post179067
https://www.homemadetools.net/forum/...950#post191087
https://www.homemadetools.net/forum/...795#post183187
https://www.homemadetools.net/forum/...980#post175931

(ahem) Correct term for cutting sheet metal lengthwise is slitting. Those long rolls often seen on flatbed trucks can be result of this operation, including slit again to feed a production line. That rolling blade is just a real good pizza cutter.
Variety of metal shear called a "Gap Shear" can theoretically do this edwise cut, though not so efficiently or with minimal buckling as slitters.