The TDI look very much like some ergonomic tweezers sold under the Excelta brandname, another Swiss brand of electronic pliers and tweezers. Given the way things work these days, it's entirely possible that most of the very high quality tweezers come from a small number of factories. Several of the high-quality European tool manufacturers source parts of their lineup from other firms; Wiha does this, for example.
Kind of like the cheap tools from China rebranded for retail sales, only at a far higher quality level.
The electronic supply sites often carry a wide range of tweezers, miniature pliers, and other tools for work on very small components. The prices vary, so it's worth it to shop around. And some offer periodic sales that are quite significant.
You can get non-magnetic stainless tools, and you can get a magnetizer/demagnetizer from Wiha and other sources.