Taking them apart is the proper way so if you have a vise try clamping the handle of a ratchet with the socket facing up. The bolt head goes in the socket and your box end wrench loosens the nut.
To maintain the bevel purchase a small tube of Prussian Blue so you can see more better where your file or stone is touching. I prefer to " Draw File " with a very fine file. Google " Draw Filing ". You'll like it and you won't make the tool go to the scrapper.
I'm new and have not a clue how to navigate this forum.
