We recommend using our DMT’s Diafold line for sharpening your bypass pruner.
The DMT Diafold line we recommend is the single or double sided Diafold or Flat Files for your Garden tools see link below:
Please watch the video below for instructions on how to sharpen your pruner.
Diafold® Flat File ByPass Pruner Sharpening
We also recommend the Mini-Hones.
The Mine-Hones are good for Garden tools as well (kit of 3 different diamonds – blue coarse to restore a dull edge, red fine for a very sharp edge and green ex-fine to refine that sharp edge. Most people work with coarse and fine – to get their edges right!
Always Clean your pruner before sharpening.
You always sharpen into the edge so as not to raise a bur.
Just a few strokes should take care of the edge.