Stihl 20&rdquo; Oregon Chain Saw Repl. Chain Model #024, 024 Super, 026, 026 Pro, 028, 028 Super, 029, 030, 031, 032, 034, 034 Super, 036, 036p, 036 Qs, 039, Farm Boss, Ms 260, Ms 260 Pro, Ms 270, Ms 270c-b, Ms 270 C, Ms 270 C-qs, Ms 290, Ms 360 Pro, Ms 360 Q-s (2081)fits Saws Listed That Use a .325pitch ,.050 Gauge Chain with 81 Drive Links Sold on Amazon