OREGON CHAIN FOR MC CULLOCH CHAINSAW PITCH 91 THICKNESS 1.3 mm Chain adaptable to models: M1 - M2 - M2B - M4 - M4B - M6 - M6B The chain is available in the following links: - 38 links: length 25 cm - 44 links: length 30 cm - 50 links: length 35 cm - 56 links: length 40 cm OREGON