Diy Maintenance Boom Sparks Confusion: What Dl Means When Replacing Chainsaw Parts
By Maya Lin-Takahashi
Q1: Can I use a 56 DL chain if my saw originally came with a 55 DL chain?
A1: Almost never. While a single link sounds negligible, it alters the chain circumference enough that your tensioner pin will likely reach its maximum adjustment travel before the chain is properly snug, leaving a dangerous, loose loop.
Q2: Is the DL number the same as the number of cutting teeth?
A2: No. The DL number counts only the bottom drive fins that sit inside the bar groove. Cutting teeth alternate along the top of the chain with tie straps between them, meaning there are roughly half as many cutting teeth as drive links.
Q3: Does guide bar length guarantee the drive link count?
A3: No. Two different 18-inch guide bars can require entirely different drive link counts, such as 68 DL versus 72 DL, depending on the manufacturer's tail mount geometry, pitch rating, and nose profile.
Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.
