I own a few of these.
As others have said, the basic design was originally a Facom one. They called them “Palm Control” ratchets, and they only came with a black rubber grip and in standard lengths.
There may have been French made ones originally, but every one I’ve seen was made in Italy, by USAG. I carry one in a set with my road box. It’s given fair service.
The original tools never met aerospace requirements, so for some years Facom made a different, more conventional, ratchet for that market, before eventually introducing the steel handle palm control ratchets, and also offering different lengths, and flex heads.
The steel handle palm control ratchets were always the stars of the range as far as I was concerned, and I acquired a couple.
They were very fine tooth before many others were, and are beautifully smooth to use. I’ve never had one apart, but I have a couple of repair kits just in case.
Downsides have always been that the chroming isn’t as good as some, and the range isn’t that comprehensive.
When Facom (and USAG) got bought by SBD everything got cheapened. Most Facom ratchets are now cheaper patterns, generally made in Taiwan.
The steel handle ”palm control” ratchets are now sold by SBD as “Proto”, I assume at a premium price.