reading the "Best of Pease" on National's website, Bob suggested that if you are "short" an insulated screwdriver (non-magnetic, non-inductive, non-conductive) consider slicing a piece of printed circuit board material from which the copper has been peeled back. You can cut the material 1/8" or 3/16th inch wide, a few inches long with aircraft sheers. Just file screwing edges with a fine rat-tail file to make two convex surfaces and you will have a tool to adjust IF tuning coils -- for those of you who still align receivers the old-fashioned way!