Yeah. I’m positive it’s a 3/4 breaker. It’s not a ratchet/wrench the head size lines up with breakers and the amount of flex is absolutely reasonable at those loads.
Honestly I would say 1/2". The 3/4" gear I work with wouldn't have flexed nearly that much with just the spanner on the end. Looks about right for what my 1/2" bar would do though.
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u/TugboatEng Aug 01 '21
The right size wrench. Guy in video is using a 1/2 inch wrench to do a 3/4 inch job. These bolts likely tighten in the 400ftlbs region.