The Oregon 91PX056G is designed to fit all chainsaw brands, with models that require a 3/8 Inch pitch, .050 Inch (1.3 mm) gauge, with 56 drive links. Fits chainsaw models from several brands including Makita, Echo, Husqvarna, Craftsman, Poulan and more. Product Details Durable, low-kickback, low-vibration chain helps reduce user fatigue for increased periods of work- For all chainsaws brands that run 3/8 Inch Pitch, .050 Inch (1.3 mm) gauge, 56 drive links Fits these chainsaw models: Echo CS-400, CS-310, CS-352 and CS-370, Poulan 2150 and 3816, Makita EA4300F40B, Ryobi RY3716 and other similar models Precision, heat-treated semi-chisel chain cuts smoothly with a higher tolerance for debris 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 Tough, long-lasting chrome outer layer and hardened rivets help reduce wear and allow for fewer chain adjustments For saw sizes up to 42 cc This saw chain met the kickback performance requirement of ANSI B175.1-2012 when tested according to the provisions of ANSI B175.1-2012. Low-kickback saw chain meets the kickback performance requirement of CSA Standard Z62.3.