DOP72V064GJO Loop-Saw Chain. 70 Series Vanguard™ Chisel Chain. 3/8" Pitch .050 Gauge 64 Drive Links. Fits Jonsered model 1020, 110, 111, 2051, 2055, 2063, 2159, 2163, 2350, 490, 520SP, 525, 535, 590, 60, 601, 61, 62, 621, 66, 70, 75, 751, 77, 80, 801, 81, 820, 830, 90, 910, 920, 930, 939, 941, CS2159, CS2159C, CS2159CWH, CS2159WH Chain saws.