There are some fine vids on You tube...
Square filing isn't so bad, biggest thing is to keep the corner in the corner and file it backwards, at a downward angle... Wasn't very good at hand filing square, ended up getting an old simington grinder... watch your angles they are very important, make both sides match, and clean out the gullets every now and then with a round file, chips get packed in there and slow the whole works down.
I've tried it with both the "flat" and the more triangle files, bout the same really, seems like the triangle held up better, just keep in mind that your trying to file three things with every swipe, side plate, top plate, and keep a sharp corner, getting the corner off one way or the other has a huge effect on the way it cuts, and how long it stays sharp.
Round file is pretty cut and dried, just shove it through with alittle back pressure and stop worrying.
Square filing isn't so bad, biggest thing is to keep the corner in the corner and file it backwards, at a downward angle... Wasn't very good at hand filing square, ended up getting an old simington grinder... watch your angles they are very important, make both sides match, and clean out the gullets every now and then with a round file, chips get packed in there and slow the whole works down.
I've tried it with both the "flat" and the more triangle files, bout the same really, seems like the triangle held up better, just keep in mind that your trying to file three things with every swipe, side plate, top plate, and keep a sharp corner, getting the corner off one way or the other has a huge effect on the way it cuts, and how long it stays sharp.
Round file is pretty cut and dried, just shove it through with alittle back pressure and stop worrying.