DEWALT 12 in Chainsaw Replacement Bar. Constructed from a single piece of steel for durability. Sprocket teeth carry the chain around the tip quickly with little friction or reduction in cutting speed. Compatible with DEWALT 12 in. Replacement Chain - DWO1DT612. The durable and water-resistant 12 in. Chainsaw Bar is designed to fit 12 in. chains on our Cordless 20V MAX* Chainsaw (DCCS620). This bar is designed to cut smooth and fast with minimum kickback.