Hello peng99.
The first are tools used for altering timing screws on a watch balance wheel.
2 & 3 look like chamfering tools, but I'm not sure about the looks of some. I wonder if some are for work in dentistry.
4, Although a little fancy I would say there purpose is the same as 1.
5, Is a screw plate with what looks like small taps.
6, Broaches these are used for opening up the worn hole and fitting a new bushing to the worn hole.
7, Don't know apart from dentistry tools.
8, Look like centre punches or scribers but they don't look thin enough for scribers.
9, The four small tools are what they say there from a KLF kit for shock absorbers all to do with the balance of a watch and its jewelling. Bergeon tool I'd like to see the other side. The last one I don't know apart from some sort of gauge.
I had a lot of old dentist drills and chamfering tools and darn good they were, they would go through anything.
I think you're going to get some really good suggestions on what they all are.