I think Britool went the way of all things, not what they were, but having said that I inherited
this 1/4" drive set and have to say it's the best bit of kit I have, it's the first thing I reach for when doing routine fiddling maintenance and the quality is pretty good, recommended.
(old Britool stuff is near bombproof).
Otherwise Teng is nice, Facom too. Stahlwille make some very nice slim spanners.
The couple of Halfrauds Pro things I have seem good. I recently needed some Torx star sockets in a hurry, so got a Pro set from Machine Mart, and have to say I was favourably impressed, good fit, nice finish, freed off some VERY tight caliper bolts on a Vauxhall.