How often should I sharpen my chainsaw chain?

Sharpen your chainsaw chain every time you refuel the tank. Dull chains are dangerous—they make you push harder, overheat the bar, and kick back more often. Look for signs like fine sawdust instead of coarse chips, the chain pulling to one side, needing to force the cut, or smoke and burnt wood smell. A quick two-minute touch-up with a file keeps it cutting safely.