We manufacture all of our torx style drives to fit the Wiha Torx drivers. As you may or may not know, not all torx drivers are the same. We found that Wiha provided the most consistent sizing and highest quality tools we tried. And yes that included Snap-on and Mac as well as a bunch of others.
Yes we know that Wiha tools are not manufactured in the US. They are manufactured in Germany and that is very acceptable to us!!!!