DEWALT 20" Replacement chain for 20" bar Chainsaw. Keep productivity up when your chain is worn or damaged with the high-endurance 20 in. Chainsaw Replacement Chain. The durable chain fits 20 in. bars on the 60V MAX* Brushless Cordless 20 in. Chainsaw (DCCS677). Designed for minimal kick-back, this high-performance Replacement Chain cuts swiftly and smoothly with low vibration for consistent, expert-level results.