Barn find bonanza - sorting through some old tools

A quick look at a pile of hand tools I grabbed from a recent house clearance. Some serious cleaning needed, but probably a few useful items. Having tried a few techniques, soaking overnight in cheap vinegar still seems to be the easiest option for removing rust. Hot soapy water and wire wool worked the best for removing grease and grime from the file handles. Seems the square-ended drill bits go with the brace, and I'm told the suction sticks are for lapping valves on old car engines.