I finally picked up a couple of KRAFTWERK pieces that I ordered ages ago...the shop has been closed due to the pandemic. The universal joint 210000 is a better fit than the piece that I currently have, but it still doesn't fit exactly right as it is slightly too big for the tray. It's better than the existing one though so a step in the right direction. The spark plug socket 201160 is also slightly too big for the tray because it is 1 or 2mm longer than my original piece. You can also see that the markings are cosmetically different, so although the same part number I think at some point they must have updated their manufacturing. I didn't receive the extension bar yet, there seems to be some confusion about whether this actually exists...I think maybe it used to but they don't make it any more. I'll report back if I manage to get hold of one.