SHERLINE Trailer Tongue Weight Scale Super Combo! With the body held securely in the vise and the gauge facing upward, unscrew the gauge from the body. It is best to use an open end 9/16" wrench. The base of the gauge is brass and a loose fitting wrench will round off the flats, which will make it very hard to remove the gauge without damaging the body or further damaging the gauge.
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