Oregon Micro-Lite 90SG is a 3/8" low profile saw chain with narrower drive links especially designed to fit on small consumer saws equipped with narrow gauge 1.1 mm (0.043") guide barsRecommended for electric saws and petrol saws up to 35cc and guide bars up to 16" (40cm ) on electric saws and up to 14" (35cm ) on petrol powered sawsFeatures:- Chamfer-chisel cutter design providing improved performance and a better stay sharp- Incorporates the OREGON Vibe-Ban low vibration feature, LubriLink and LubriWell lubrication features for enhanced service life- Witness marks on the cutter top plates assist in chain sharpeningSpecifications: Depth Gauge 0.025 File Size 4.5mm Gauge 0.043 Pitch 3/8" Number of Drive Links: 55How do I measure the length of my chain? The length of your chain is determined by counting the number of drive links in your chainYour drive link count has a direct correlation to your bars lengthBe careful; a bar made by OREGON may take a different drive link