Before the HX series came out with the super low profile sockets, the first kit Facom/USAG introduced with the ultra compact PICO case was the R1PICO. It is a combination socket (only 5 sizes) and bit set and uses the R.180 flex head ratchet.
I have this Facom R1PICO set. Although very expensive, it packs a lot of utility into a pocket-sized case with a smooth shape and rounded corners. The case is tough and the latch slides sideways against a spring to open, meaning it can be opened easily with one hand but never opens accidentally. The whole thing feels better in the hand than it looks in pictures.
The sockets are standard 1/4" drive 6, 8, 10, 12, and 13 mm – about perfect if you have room for only five sockets. The locking flex-head ratchet is great too: tiny, versatile, strong, and low back-drag. In short, the whole package is very well thought out.
My only complaint after having used it for a couple of years is that the flat-head screwdriver bits are a bit big. The smallest is 4.5 mm and I more often need a smaller size than that (for example, wiring strip connectors) than I need the biggest size, which is 8 mm. I’ll probably replace that bit at some point.
I am usually against gimmicks but find much of Facom’s recent innovation in sets and cases to be practically useful. They’re clearly pushing this packaging angle hard.
