When ordering a replacement saw chain, which of the following must you know?

When ordering a replacement saw chain, knowing the pitch, gauge, and number of drivers is essential. The pitch refers to the size of the chain, specifically the distance between the rivets that connect the links of the chain. The gauge indicates the thickness of the drive links, which is crucial for ensuring the chain fits properly on the guide bar. The number of drivers corresponds to how many drive links are present in the chain, which is necessary to ensure that it correctly matches the chainsaw's guide bar and sprocket.

These specifications directly affect the performance and safety of the chainsaw. If any of these measurements are incorrect, the chain will not fit the saw correctly, potentially leading to safety hazards or equipment damage.

While the color of the chain may help identify it, it is not a technical specification necessary for ensuring a proper fit. Knowing the brand alone does not guarantee compatibility across different models or types of chainsaw chains. The length of the chain is also important, but it is a part of the collective information that includes pitch, gauge, and the number of drivers to ensure total compatibility and performance. Understanding these details is crucial for anyone tasked with maintaining or replacing chainsaw components.