A hammer almost always seems to be out. But a 1/4" and 3/8" ratchet, with either a 8, 10, or 12 mm socket is most used when working on the bikes..Good ol' jap bikes, lol. When fabricating, take a guess. Thats right, the 4 1/2" angle grinder, lol. When isn't one of those out?
-Max..