When sharpening a tool by hand, the File is the most common.
When filing a tool, you should only use FORWARD STROKE and lift the file from the piece before making the backward stroke.
When sharpening a tool by hand, the Stone is the most common.
A stone must be cleaned and oiled before each use.
When using a bench grinder, you must make sure the grit and angle is correct before grinding.
When using a Bench Grinder, it is okay to not have on a Face Shield or Leather
When sharping a screwdriver, you need to make sure the end stays flat on a Flat Head.