Oregon 557503 20" AdvanceCut Bar and 20BPX .325" Chain Gauge, Saw Chain Combo 20BPX078G Saw Chain - Pitch: .325" Gauge: .050", Drive Link Count: 78 - 200GDBK041 - 20" guide bar features small radius multi-rivet nose for good durability and control Bar mount used on select Craftsman, Echo, hitachi, Homelite, Husqvarna, John Deere, Jonsered, Poulan, Ryobi, shindaiwa, tanaka Saws Oregon lubritec design keeps your chain and guide Bar Oiled, for less friction and extended usage. For saw Sizes up to 62 cc