Tooth shape: Half chiselChain pitch: 3/8" LoProDrive link thickness (mm): 1.1Number of drive links: 44Safety drive link: YesEquivalent to Oregon: 90PXEquivalent to Stihl: 61PMMC3Equivalent to Carlton: N4C-BLEquivalent to Windsor: 43RGEquivalent to Husqvarna: H38Equivalent to Dolmar: 290