I was searching for a grinder this morning and came across two which had bad plugs. Rather than do the quick fix myself, I decided to save the task for Henry and Juniper, who were coming to help a little later and were more than capable of handling the repair. They arrived one at a time, which was perfect. We dug out the proper tools, which included a razor knife, Philips screwdriver and wire strippers. Both kids did each step, with the appropriate tools, cutting off the old plug, stripping the wires and disassembling and reassembling the new plug. Then we plugged the formerly broken tools, and they were good as new again. It is always good to be handy!