The Oregon 91PX052G is designed to fit all chainsaw brands, with models that require a 3/8 Inch pitch, .050 Inch (1.3 mm) gauge, with 52 drive links. Fits chainsaw models from several brands including Echo, Craftsman, Poulan, Homelite, Makita Husqvarna. Designed for low kickback and low vibration, reducing user fatigue.