fixture for truing the bore of a hyd cylinder rod eye

[Toolmaker51]

the bore cleaned up

This is real machining. . .for scale, note size compared to head of the combination square.
Frank S is line boring again. Some would hesitate hanging that much weight off-kilter to the carriage and ways. Au contraire, it's balanced on the offside, in a choker slung from a chain fall, probably on a rail and trolley gantry crane. Effectively centers load on the carriage.
Take that Mr. Gravity!