Even the best chainsaw chains will wear out and need to be replaced. Choosing the right replacement can be difficult because there are so many sizes and types. In order to properly fit a new chain, it is important to know the bar length, the number of drive links (pitch), and the gauge of the chain.
The bar is the flat metal piece on which the chain sits and spins. It has a grooved section into which the chain's drive links slip. Counting the drive links is easy -- simply measure the distance between any three rivets and divide it by two. You can also find the chain's pitch stamped on the chain itself. Oregon chain comes in a variety of pitches, from 1/4" to 3/8" and larger. The correct chain pitch must match that of the chainsaw's drive sprocket and, if applicable, the bar nose sprocket.
Chainsaws are powerful tools that can be dangerous to operate. The right chain will help reduce accidents and injuries. A sharp chain makes fewer kickbacks and cuts more quickly and easily, but it must be kept correctly lubricated to prevent friction on the saw blade, as well as to keep the cutters clean and free from clogging.
If you are a beginner, we recommend trying a low-profile chain such as the OREGON 72RD072G ripping chain (buy on Amazon). It is durable and features safety components wrapped around the cutting teeth to help reduce kickbacks. However, it may need more frequent sharpening.