The Oregon S33 is designed to fit all Pole Saw chainsaw brands, with models that require a 3/8 In. pitch, .050 In. (1.3 mm) gauge, with 39 drive links. Built-in Lubri-Tec automatic oiling system extends the life of your chain by delivering oil to key parts of the chain so you can work smarter with less downtime and maintenance. Fits chainsaw models from several brands including Kobalt, Chicago, Earthwise, Greenworks, Sun Joe and more.