X-CUT SP33G is the first ever saw chain to be completely developed, designed and manufactured by Husqvarna. The chain is especially suited for demanding consumers and everyday professional use. With a sharpness that lasts, an outstanding durability, low stretch and a high cutting efficiency, it’s made to make your output better than ever. Available lengths: 13”, 16", 18", 20". Fits chainsaw models: 435/435e, 440/440e, 445/445e, 450/450e, 450 Rancher, 545, 550XP/550XP MII.