I would go with the Knipex 00 20 04 SB, 00 20 04 V01, or 00 19 58 V02 set. Not cheap, but you'll be happy with them if you use them often. Since you mention using the 90 degree tips, these sets include those.
The 00 20 04 V01 set is available on the amazon.de for a very good price right now (90 euros which includes VAT). The other two sets I linked are their "precision" line (per Knipex).
The stamped set of 12 is typically made by Lang or Stride for others, and they are generally pretty good. The price is hard to beat for USA made tools.
Originally Posted by dlundblad
I either have the 927 or the one that's similar.
One of the tip holes was broached at the wrong angle so if I use 90*tips, which is quite often, they don't work.