The "key tool(s)." You either have used the "through-the-lock" method of forcing entry to locked doors on or within fire buildings, are adopting it, or are so far behind in basic firefighting that this column won`t help you. In any event, have you ever found that the tool accompanying the "K" tool, "A" tool, or "O" tool--or whatever else that may have been proved inadequate in some experienced departments--is just not there (missing from the holder, lost, or has vibrated loose and is found on th