I’m not familiar with the exact fasteners in question, but the problem here generally seems to be the fasteners, rather than the tool.
You get all these fasteners with countersunk heads and a relatively tiny hex or torx recess, or worse still some ‘low profile’ head that only allows about 5 thou of the tool to engage! You can barely remove ‘em when new, let alone rusted in! See above re design mistake!
Probably specified by some kid with a cad system and a chart who’s never used a wrench in his life, then cheapened by an accountant who thinks saving .02 cents a fastener is a good idea!
However, I digress. There are some good bits out there, and I have to say that this is one area where it doesn’t pay to go too cheap. Snap On, yes, seem good. Stahlwille, same applies. My current favourites are Hazet. I’m not particularly a brand snob, different makers are good st different things, but Hazet really do seem to be good at these!
Koken are pretty good too, and they sell the replacement inserts at very reasonable prices. If I order one of these torx bits now, I order spare inserts at the same time.
Beta offer a 1/2 inch drive bit holder that takes 10mm interchangeable bits. This is probably the most cost effective option.
Hazet shown.
