Grobet 3-square needle files are back in stock, along with a name change: Grobet has been rebranded as Glardon. I have been assured that only the name has changed, and that they are still made in the same Swiss factory and to the same quality specifications.
I have been using the Glardon files for a month or two, and can find no discernible difference between them and the old Grobet files, but will continue to monitor their quality.
Bahco 6″ XX-slim are also back in stock. Their 10″ files are still backordered, but are scheduled to be back in stock at the end of the month.