Review on Wowstick 1F+ MINI Precision Electric Screwdriver Set: 56 Bits, Dual Mode Cordless Li-Ion Battery Power Charge Automatic Screw Driver, LED Lights & Electronic Equipment Maintenance Tools Kit by James Rogers

I'd suggest not even considering the included case as part of this purchase since it doesn't shut. The lid just rests on top and even the slightest bump knocks it off.The drivers themselves are fine. The small one fits the bits included in the little holder, which are the same size as you'd get with the electric Wowstick devices. The large driver feels nice in hand and quite strong. It takes your usual bits which fit in a magnetic holder in the back.Btw, that just pulls out, it isn't threaded. It fits snug and lines up nicely. For the reviews talking about how it's hard to open and squeaks when you twist it.don't twist it! It's just a rubber o-ring, there's no threads. Just pull it out.To summarize: the large driver is really nice. The small driver feels good and fits in small places. The case looks nice but is useless and can't be used to transport the drivers anywhere without the kid falling off.