Hello guys,I bought a pair of props from online few days ago,and now I have a problem with my propellers.The prop adapters could'nt fit into my propellers.What should I do?.

You should just make the holes bigger untill it fits.
You can use a reamer or a filer to do it. Please be careful while doing it your hand should be straight or else holes of your props will be chopped at an angle and results in vibrations.

Is there any other way?,is there a hand reaer tool,just like hand held drill tool?