I used a edger tool to cut the sharp inner and outer edges off.
Then I dyed the edge with an edge dressing.
After that dried, I applied a coat of Gum Tragacanth.
This is (literally) a snot-like slimy substance that's applied to the edge than burnished.
It leaves the edge with a hard, shiny, smooth surface that looks "finished".
I used an OLD "circle edge slicker" made of a super hard wood called Lignum Vitae.
Today, they're made of nylon.
I filed a wider groove in the edge to fit holster edges, then polished the groove smooth.
After applying the Gum Tragacanth, briskly rub the circle edge slicker over the edge until it gets shiny.
Some people make a cone-shaped slicker that looks like a cone with various width grooves in it.
They mount this on an electric motor and power burnish the edge, often with wax.
I use a mixture of Gum Trag. and 30% water mixture. Dampen your sanded and edged (with the edger) edges and use a 1/2 circle slicker on them..this is for single edges. I then clean them up with a highly polished dear horn....for double edges...same process but just use the horn. A finishing touch is after I dye/buff and clear coat...then hit the edges hard on a buffing wheel and then again with the horn. It makes them like glass and without wax...........