Difference in chain size explained

Depending on the type of chainsaw you are using and what type of work you are using it for, you will need a different type of chainsaw chain. Chains are sold based on four important factors: Pitch, Gauge, Drive Link count and by application/user preferences.

This is not a straightforward process and we recommend that you take your chainsaw to your local authorised dealer so that the correct chain can be established. They will need to determine if the chainsaw is used by a consumer or a professional. They will also need to establish the following:


Pitch is defined as the distance between any three consecutive rivets divided by two. We offer six variants of pitch: 1/4", .325" mini, 3/8" mini, .325", 3/8" and .404".


Gauge is defined as the width of the drive link that fits into the guide bar. We offer chains in 4 variants of gauge: .043/1.1 mm, .050/1.3 mm, .058/1.5 mm, .063/1.6 mm.

Length of the chain

To determine the "called" length of the chain you will need to count the number of drive links.

Other criteria

Other than the fit criteria (gauge, pitch and length) chains have different characteristics (e.g., cutter profile and chain type) to fit different applications and user preferences.

The fit criteria (1–3) of the chain and bar are often printed into the guide bar side plate.

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