Chainsaw Care
How to Sharpen a Saw Chain
All cutting attachments need regular maintenance to perform at their best. Learn how to sharpen your STIHL chainsaw so you get the best possible cutting performance.
Tools You'll Need
- Round file (select appropriate size based on chain pitch)
- Flat file (for adjusting depth gauges)
- File holder guide (e.g. FF1)
- 2-in-1 EasyFile (simultaneous sharpening & depth gauge adjustment)
- Felt-tip pen
- Clamps or vice
- Protective gloves
How to Tell if Your Chain is Dull
- Cutting attachment doesn't pull itself into the wood; you have to push.
- Produces fine sawdust instead of coarse chips.
- Emits smoke even when properly lubricated and tensioned.
- Cut veers to one side (uneven teeth).
- Chainsaw chatters or bounces, affecting precision.
1
Preparation
- Secure the guide bar in a vice.
- Clean the saw chain thoroughly.
- Increase chain tension slightly to minimize movement.
- Mark the most worn tooth with a felt-tip pen as reference.
2
Sharpening the Teeth
- Use the round file to sharpen each tooth to the reference length.
- Maintain a 30° filing angle (25° for Rapid Hexa chains).
- Ensure the file protrudes about 1/4 of its diameter above the top plate.
- Check uniformity with the felt-tip mark.
3
Adjusting the Depth Gauge
- Check depth gauge height with a filing gauge.
- If too high, file down using a flat file.
- File the top of the depth gauge at an angle parallel to the service mark.
- Do not use a round file for depth gauge adjustment.
Video: How to Sharpen Using the STIHL 2-in-1 EasyFile
Final Checks
- Rotate the chain 180° and sharpen the opposite side.
- Ensure all teeth are equal and depth gauges correct.
Tips for Effective Sharpening
- Sharpen regularly to prevent excessive wear.
- Count file strokes per tooth for uniformity.
- Use the 2-in-1 EasyFile for efficiency.
- Store chainsaw in a dry place to prevent rust and resin buildup.
Recommended Products
STIHL Picco Micro 3 Chainsaw Chain
Low-profile chain for small bars — perfect for frequent pruning and easy sharpening routines.
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STIHL 14" 26RSC x 56 Drive Links Chainsaw Chain
Reliable standard chain; sharpening gives longer life and better performance.
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STIHL 16" Rapid Super Pro Saw Chain
High-performance chain for demanding tasks — accurate sharpening is essential.
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