I also received the prop adapters but I don't know how to install the blades on it nor how to install it to the motor, can anybody post a pic of yours installed?
The props need to be as per your setup drawing if I am correct you are building a quad in the x configuration.
Front left CW motor the same
Front right CCW motor the same
Left rear CCW motor the same
Right rear CW motor the same
The prop adapters should fix the shaft and use the correct bushing or drill the props the correct size as per your prop adapters AND balance all the props!
Remove the flashing from the razor edge of the props!
If you are using the prop adapters I think you are they will tighten on the motor shaft as you tighten the spinner nut or nut and washer.
They have a tapered split collect that locks on the motor shaft.
I don't have my camera charged up
Hope this helps!