I believe we need to update a lot of our existing tools. To enhance the working capability of people in places without much electricity or non at all. The tools need to be very low power but with the same standard. The reason for the low power requirement is that it would be good if they were able to be charged by a solar panel. I believe besides a battery powered sewing machine a cordless screwdriver both could be made very useful in rural areas without electricity. If they could be charged by cheap solar power similar to phones I think it could be a success. I saw one company that shared batteries for different tools. I think this is good because if you have at least one extra battery one battery could be charged during use.