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Decoder for chainsaw chain

Identify chain type and sharpening file size

Pull the chain
Look for stamped code on the chain drive link. If necessary, pull the chain up to expose the code like in the picture above. Then select the code you found from the drop-down list.
Step 1:
Code from drive link
drive link stamp code location
Code should be on the circled area, usually on the right-hand side. Look also for possible manufacturers logo: "Oregon", "H" = "Husqv" = Husqvarna, "Stihl" etc.

code examples :

example code: 3 example code: 21 example code: G3

Some chains may not have a stamped code. In that case refer to: How to determine pitch.

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