Ow now I remember... I saw in my mother's manicure kit a thingy like this - never knew what it was for back then either
... that's why I put in in a "?" after bit kit... figured it's a replaceable gimmick...
All in all looks like a cool-thought-up nailcare product.. too bad there are no nail cleaners...
I'd definitely pick one up just to see how well it does...
Also the scales might fit on a Victorinox (it's 61 mm so closer to Vic size).
Corwyn of Multitool, the First of His name, King of Victorinox, King of Leatherman, Gerber and the First Generation SOG, Lord of the Seven Wrenches, Protector of the Forum, Khal of the Bushes, called Corwyn Toolborn, the Unsharpened, Father of SAKs.