Oregon Ref. 200ATMD025, GB SN20-50Stihl 024, 026, 028, 029, 030, 031, 032, 034, 036, 036QS, 038, 039, 040, 041, 042, 042AV, 044, 045, 046, 048, 056, 064, 066, E15, E20, E220, MS240, MS260, MS260C, MS261, MS261C, MS270, MS270C, MS271, MS271C, MS280, MS280C, MS281, MS290, MS291, MS291C, MS310, MS311, MS340, MS341, MS360, MS360C, MS361, MS361C, MS362, MS362C, MS380, MS381, MS390, MS391, MS440, MS441, MS441C, MS460, MS461, MS640, MS650, MS660, MS661 and MSE220Bar Type: Solid nose, Pitch: 3/8" or .325", Length: 20 ", Drive Links: 81, Packaging Type: Branded sleeve, Gauge: .050