If you've ever damaged the plastic casing of a phone, computer, or other electronic device with a jeweler's screwdriver or other prying tool, you will immediately understand that you need some of these tools. When you work on computers, especially for other people, you need some other tools. HP, for example, uses Torx screws in several places on its computers. I think that's to discourage people from opening them. I keep a full set of torx, allen wrenches, and other tools in a 5# set in my garage, but I'm tired of going to the garage every time I need a torx. This set is small, everything is stored in a small zippered bag. Little chance of losing parts. I have this kit in my office and now...no more trips to the shop for a plain torx. Not all sizes are included in the kit, but there are sizes that are typical of most electronics. I'm glad I found this kit at Daily Deals. I would buy at regular price.