A couple other things that come to mind are: -6" long sections of Brass Bar stock ( 1/4" and 1/2" diameter) to use as a punches when you don't want any to damage the the thing your punching. They won't create sparks either. - A small mirror, to help see around a corner in a tight engine compartment - A piece of pipe, ~ 16" long that will slip over your ratchet handle, to give yourself some more leverage to help loosen a tight bolt or nut
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