I think Torx bits are same as Star bits.
I know the series goes from T1 to T100.
Not sure what the suitable hobbyist range would likely be. I suppose T6 to T25 maybe. I've got some cheap Torx keys down to T10, but T10 is not small enough.
Anyway, I want bits. I usually go for decent quality. Are we then talking something like Bosch brand? Extra hard version maybe? Or is that overkill? TIA.