The Oregon AdvanceCut Saw Chain is a .043 in. gauge, 3/8 in. pitch, low kickback, low-vibration chain that allows homeowners and landscapers to maintain their trees with ease. The narrow .043 in. kerf makes the chain roughly 15% lighter. The twin cutting corners on the low-vibration, low kickback Chamfer Chisel cutters offer outstanding performance. 90PX offers higher chain efficiency since Oregon's narrow kerf cutting systems require less power from the saw than standard cutting systems. Always use this chain with guide bars designed for narrow kerf chain. The Oregon AdvanceCut Saw Chain fits Husqvarna 128LDX, 23, 235, 240E, 243, 249, 325P4, 325P5X, 326P4, 326P5X, 327P4, 327P4X, 327P5X, Electric 16, and 235 E as well as saws made by Echo, Makita, Craftsman, McCulloch, Black & Decker, Maruyama, Shindaiwa, Solo and Tanaka.