Fits Stihl models 024, 024 Super, 026 PRO, 028, 029, 031, 034, 026, 036 PRO, 028 Super, 039, 040, MS 260, MS 260 Pro, MS 261, MS 261 C-M, 034 SUPER, MS 261 C-MQ, MS 270, MS 270 C, MS 270 C-B, MS 270 CQS, MS 271, MS 280, MS 280 C-BQ, MS 280 CQS, MS 290, MS 291, MS 291 C-BEQ, MS 310, MS 341, MS 360, MS 360 C, MS 360 Pro, MS 360 QS, MS 361, MS 361 C-B, MS 361 QS, MS 390, 036, 026P, 036 QS, 030, MS 261 CQ, 032 22lpx074G: .325" pitch, .063" gauge, and 74 drive links. Narrow Kerf-No Blued cutters provide superior corrosion resistance and improved strength "X" grind-Enhanced grind geometry significantly improves out-of-box sharpness with substantial speed improvement in boring and bias (undercut) modes Warning: Oregon 20, 21, and 22lgx super 70 chains may be capable of kickback that could result in serious injury to the saw operator or bystanders