If it is dull look at this video
https://www.youtube.com/watch?v=uOah91g3PsI
2 tools needed to resharpen
a burnisher or a shank of a harden drill
and a file that is a single cut , second cut (medium fine) mill file, flat on both sides.
If it is dull look at this video
https://www.youtube.com/watch?v=uOah91g3PsI
2 tools needed to resharpen
a burnisher or a shank of a harden drill
and a file that is a single cut , second cut (medium fine) mill file, flat on both sides.