DOP72V066GMCC Loop-Saw Chain. 70 Series Vanguard™ Chisel Chain. 3/8" Pitch .050 Gauge 66 Drive Links. Fits McCulloch model 1-10, 10-10, 10-10A, 1000, 2-10, 3-10, 4-10, 5-10, 55, 555, 560, 570, 6-10, 60, 605, 610, 620, 650, 655, 7-10, 700, 800, 805, 850, CP-55, CP70, CP70L, Double Eagle 50, Double Eagle 80, Eager Beaver 3.4, Eager Beaver 3.7, PM 605, Pro Mac 55, Pro Mac 5700, Pro Mac 8200, Silver Eagle 3420, Silver Eagle 3720, SP-60, SP-70, SP80, SP81, Timber Bear, Titan 50, Titan 57, Titan 70 Chain saws.