I actually purchased these for use with a Kobalt handle but to my surprise they weren't the same size as the Kobalt handle. They look almost the same! These are Okay for light use on electronics but you'll need to take it easy with these tools. The bits will wear and they don't take strain well or toque not that you need to over tighten screws but even light torque can bend the minus tip or wear the positive tips.
I do recommend them for light use and they do okay if you try to take care of them. You can find these same tools branded in several other names but these are the best alternative to more well known brands.