The 6-in-1 Screwdriver Nut Driver is a good tool to have in the tool box, especially because the two sizes of nut drivers are useful. Most appliances have screws that can only be removed by the nut driver. Yes, most are 1/4" but some have the 5/16" heads. This tool is under ten bucks and at some hardware stores right near the check out for easy pick up. If you are shopping at Home Depot or Lowes, you can find them in the tool section.
