Sometimes, it's a wrench job, sometimes a speeder, sometimes a ratchet, sometimes an air ratchet, sometimes an impact. Ya' gotta turn a lot of bolts and nuts to instinctively know which is the best tool.
Sometimes, there's a lot of them and you're on flat rate and you want air tool speed. Sometimes, you're feeling smooth and contemplative and a combination wrench is the peaceful, quiet way to go with a few fasteners.
Sometimes, the specialty wrenches come out for tappets, starters, injector lines.
After a few years, ya' just know which to reach for.
And once in a great while, you throw every tool in the box at it, including the BFH, and the fastener thinks it has won. That's when the hot wrench comes out.
jack vines