

Replacement Chainsaw Chain 18" 66 Drive Links Pitch 3/8LP Gauge .050
- Chain Pitch 3/8LP
- .050 Gauge
- Drive Links 66
If you need to identify your chain then you need to know the following information.
Chain Gauge:
Chain gauge is the drive link's thickness where it fits into the guide-bar groove. The gauge of the chain and the gauge of the guide bar must match.
Chain Pitch:
Chain pitch is the distance between any three consecutive rivets divided by two. Pitch defines the size of the chain. Other parts of the cutting elements are pitch-related. The drive sprocket must be the same pitch as the chain, and so must the nose sprocket in sprocket-nose bars.
Number of Links:
The number of drive links need to be counted. These are the teeth on the back of the chain shown below.
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