One of the most frequent questions that we get is this -- "How do I know what chain to buy for my saw?"  That's a good question.  There are so many different types and sizes of chain that it can be difficult to identify just which one your saw needs.  The purpose of this guide is to educate you on such chain terms as pitch, gauge, and length.

Chain Pitch

The chain pitch is defined as the distance between any three consecutive rivets divided by two. The pitch defines the size of the chain. Saw chain is made in several pitches - 1/4" is the smallest, 3/8" is the most popular. The drive sprocket must be the same pitch as the chain, and so must the nose sprocket in sprocket-nose bars.

Chain Gauge

The chain gauge is defined as 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. Saw Chain is made in several gauges - such as .050", .063", etc.

Chain Length

The length of your chain is determined by counting the number of drive links.

All three of these factors must be taken into account when purchasing a chain for your saw.  Following is a list of the types of chain that we currently stock and sell in our eBay store:

Oregon 20LP
Pitch: 0.325"
Gauge: 0.050"

Oregon 22LP
Pitch: 0.325"
Gauge: 0.063"

Oregon 72LPX
Pitch: 3/8"
Gauge: 0.050"

Oregon 75LP
Pitch: 3/8"
Gauge: 0.063"

Oregon 90SG
Pitch: 3/8"
Gauge: 0.043"
Low Profile

Oregon 91VX
Pitch: 3/8"
Gauge: 0.050"
Low Profile

I hope that this guide will be helpful as you try to purchase the correct size chain for your saw.  If we can help you in any way, please feel free to visit our eBay store or send us a message through the eBay system.