How to Sharpen Chainsaw Chain with File

*Watch the video above for a hands-on demonstration before or after reading this guide.

If you're looking for a straightforward, no-power-tools method to maintain your chainsaw, learning how to sharpen chainsaw chain with file is an essential skill. This method uses a combination of a round file and a flat raker file—often in an all-in-one sharpener tool that lets you do both tasks in a single pass.

What You’ll Need

All-in-one chainsaw sharpener
Round file (for cutter teeth)
Flat (raker) file

This tool is designed for speed and precision. The round file sharpens the cutting tooth, while the flat file lowers the depth gauge (raker) at the same time.

Step 1: Understand How the Tool Works

The all-in-one sharpener consists of three key points of contact:

One guide rests on the tooth behind the one you’re sharpening.
The round file sharpens the current cutter tooth.
The flat file simultaneously lowers the raker in front of that cutter.

This combination ensures you're sharpening and setting depth in one motion, which helps maintain proper cutting performance across the entire chain.

Step 2: Hook the Sharpener Into Position

Place the sharpener over the chain so that:

One metal guide sits firmly on the cutter tooth you're about to sharpen.
The round file aligns with that tooth’s cutting edge.
The flat file rests on the raker ahead of the cutter.

This positioning gives you control and stability as you sharpen.

Step 3: Align to the Correct Angle

Use the markings on the sharpener to line up the file with the proper sharpening angle. Most cutters require a 30° angle, which should be marked clearly on your guide.

Align the tool to match the angle of the cutter.
This will ensure consistent sharpening across all teeth.

Step 4: File Every Second Tooth

Begin sharpening:

Use a steady, even motion.
Let the file glide through the tooth—no need to apply too much pressure.
As you sharpen the cutter tooth, the flat file will simultaneously lower the raker ahead of it.

Continue working down the chain, sharpening every second tooth on the same side.

Step 5: Flip the Saw and Sharpen the Other Side

Once you’ve finished one side of the chain:

Rotate the chainsaw or file guide.
Position it to sharpen the teeth on the opposite side.
Repeat the same process—filing every second tooth until the full chain is complete.

Final Tips for Sharpening a Chainsaw Chain with a File

Always follow the original cutter angle recommended for your chain.
Keep your files clean and replace them when worn.
Don’t skip the rakers—keeping them level ensures even cutting depth.
Regular touch-ups are better than waiting until the chain is dull.

Conclusion: A Simple, Reliable Way to Maintain Your Saw

Now you know exactly how to sharpen chainsaw chain with file using an all-in-one sharpening tool. It’s a fast and effective method that gives you more control, saves money, and extends the life of your chain.

Want to upgrade your sharpening setup? Browse our chainsaw sharpening tools, chainsaw tools - trusted by pros.

Stay sharp. Stay safe. And keep your chainsaw cutting like it’s brand new.