I believe 0.8mm or 32 thou is near enough. Certainly most fit them as supplied for the simple reason the fine tip can easily be damaged by adjustment. Another reason why the gap is included in plug spec. Les.

Richard

2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone