Using JIS basically requires buying a special high quality screwdriver set. A few years ago I bought a few Nintendo switch repair kits that came with JIS drivers, and ended up removing the screws with a drill. Since then I bought an ifixit kit, which has heads that are actually the right size - unfortunately it is too late for my poor switch, that is now slightly mangled beneath its case.

Basically what I'm trying to say is fuck JIS.