Chainsaw Filing

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How Do I Know What Size Files My Chainsaw Chain Needs?

This is an excellent question and one that comes with a few different answers. Not all chainsaw files are the same, after all. Like any of your other tools, it's important to keep your saw chain up to par. Here's a basic guide on finding the right chainsaw files to sharpen your teeth.

Determine Your Chain Type

All chains come with a chain type. This information can be found on your chain, or in your chainsaw's manual. On the chain, the information will be on the cutter link. These are some common ID numbers, their pitch, and the corresponding file sizes.

  • 25, 91 or 1/4" pitch - File size 4.0 mm or 5/32 inches
  • 90 - File size 4.5 mm or 11/64 inches
  • 20, 21, 22, 95 or 0.325" pitch - File size 4.8 mm or 3/16 inches
  • 16, 18, 26, 27, 72, 73, 75 or 3/8" / 0.404" pitch - File size 5.5 mm or 7/32 inches

The most reliable way of choosing file size is by using the ID number. Pitch can be used as a last resort, though.

What Tools Do I Need to Sharpen my Chainsaw Chain?

When you're getting ready to sharpen, make sure that you have all of the following tools on hand.

  • File guide
  • Flat file
  • Round file
  • Depth gauge guide
  • Chainsaw vise
  • Gloves
  • Goggles

A sharp chainsaw is the best way to enjoy the work you'll be doing out in the field. Without a sharp tool, you may have to submit to defeat. The best way to keep your tool up to par is by having the right equipment to maintain it.

Contact Us at Anytime

If you're looking at your cart before checkout, and you're not sure you've got what you need, be sure to reach out. We here at Treestuff pride ourselves on being able to assist our customers. We do this by providing the best brands that money can buy, as well as walking customers through every step of the process. We'll help you pick the right item for your needs.

Chainsaw Chain Options at Treestuff

The most dangerous chef's knife is a dull knife - and the saying translates perfectly to a chainsaw chain. Your chainsaw is only as good as the chain you put on your chainsaw bar, which is why we offer the highest-quality chainsaw chains. If you're looking for a great value chain that you can count on, check out Notch Equipment Chain, with their Centri-Lube oil distributing channel.

If you're looking for your classic chain to replace what came with your bar, check out Oregon Chainsaw Chain. Oregon Chain has been trusted for years as a high-quality replacement chain. If you're partial to sticking with Husqvarna - we have their chain as well! You can also use our chainsaw Bar & Chain Finder to find all of the chainsaw chains that we carry that will fit your model of chainsaw!

As always, safety and quality are the utmost concern. If you're not sure what you need or have any questions, please ask a Treestuff specialist by using our online chat. You can also reach us at and by calling 877-408-7337.