I would say...starting from the top left, the pointy thing is to remove the extractor spring.
Top right would be to unscrew the volley sight screw.
Middle right is a screwdriver...duhh...
Bottom right, for the bayonet screws possibly ?
Bottom left, a screwdriver and the notches is what i'm assuming his the link spreader 5THBATH is talking about.
Middle left is another screwdriver.... duhh again
The 3 notches in the middle are gauges, the one on the far right should be the firing pin protrusion gauge.
I think.......