Kershaw Select Fire a bit driver snapped on a full size knife.
The blade on this thing is huge 3 3/8 (my biggest folder, medium sized hands, I prefer smaller blades).
Chinese 8Cr13MoV steel, came sharp out of the box and it doesn't have a cheap feel to it.
The blade opens smoothly with a thumb stud and it locks up solidly with a liner lock with no play.
The bit driver located on the back opens smoothly, has a half stop and finally rests in the open position.
The bits are held in place by a magnet, and release with some resistance.
There is a ruler on both sides of the driver shaft, going up to 4 cm or 1 6/8.
There are two philips and two flathead bits included on the sides on the knife, nested in a spring loaded storage compartments.
The belt clip is strong and can be switched to the other side, but only in tip down carry.
The knife is assembled with hex screws and should be easy to adjust if need be.
For the price paid ($23) it's a very good purchase, but it won't replace my Skeletool in edc role.
Some more extensive use and testing are needed to tell if this is just a gimmick or a serious tool.