Welcome to the FOG! As mentioned it might be helpful to use the ekat system. You can go to the top of this page and find a menu option under [Festool Websites]. The ekat system uses Java so it is generally better to use a computer versus a mobile device.
I am replacing blade insert with zero clearance insert and there are six screws (part # 228733). I can get them out with traditional U.S. tools but would like to have bit that fits exactly for future use. Thanks