How to Sharpen a Chainsaw Chain

How to Sharpen a Chainsaw Chain (Step-by-Step Guide)

A sharp chainsaw chain makes cutting faster, safer, and more efficient. A dull chain not only slows you down but also puts extra stress on your chainsaw and increases the risk of kickback. Here’s a complete guide on how to sharpen a chainsaw chain properly.

1) Signs Your Chain Needs Sharpening

• Produces fine sawdust instead of wood chips
• You see smoke while cutting
• Requires extra pressure to cut
• Cuts crooked or drifts to one side
  👉 These are clear signs that the chain is dull.

2) Tools You’ll Need

• Round file (matched to your chain’s pitch size)
• File guide or clamp to hold the saw steady
• Flat file and depth gauge tool (for rakers)
• Protective gloves and safety glasses

3) Step-by-Step Sharpening

1. Turn off the saw and secure the bar.
2. Place the round file at a 30°–35° angle on the cutting tooth.
3. File each tooth with 3–4 strokes, pushing in one direction only.
4. Work your way around the chain, sharpening every tooth evenly.
5. Ensure all cutting teeth are the same length.

4) Check and Adjust Rakers

• After every 2–3 sharpenings, check the depth gauges (rakers).
• If rakers are too high → chain won’t cut effectively.
• If too low → aggressive cutting and increased kickback.
• Use a depth gauge tool with a flat file to maintain the right height.

5) Regular Maintenance Tips

• Clean the chain before sharpening.
• Keep the chain well-oiled to prevent overheating.
• Replace worn or damaged chains immediately.