Suitable for KOMA, ZENO 2600 and more 25cc, 26cc chain saws; Provide two sprocket specifications: 3/8 "x6 teeth and 1/4" x8 teeth; Used to connect clutch drum and saw chain, achieving smooth transmission; Chain saw compatible with 12 inch and 14 inch guide plates; Suitable for maintenance and replacement of chainsaw clutch and sprocket system; Suitable for multiple devices and models, with extensive compatibility; Using high-quality materials to ensure durability and long-term stable operation; Simple design, easy to install and replace, saving maintenance time; Optimize equipment performance, improve work efficiency and operational smoothness; Suitable for daily maintenance, extending equipment lifespan, and reducing the occurrence of malfunctions