Abstract: An endless chain of this invention for a chain saw is provided with cutter links of a unique shape and construction. Such cutter link has an inclined U-shaped and substantially consists of a saw adjusting portion and a saw tooth portion. The saw tooth portion further has a hard metal tip brazed at the top thereof, wherein the hard metal tip forms a saw set. Due to such construction, the saw tooth portion which is provided with such hard metal tip can smoothly saw off lumber while the saw adjusting portion can completely remove the sawn-off lumber chips. The saw adjusting portion also provides minimum vibration of the chain saw.