OREGON CHAIN FOR STIGA CHAINSAW PITCH 21 THICKNESS 1.5 mm Chain adaptable to models: SP460 - SP510 The chain is available in the following links: - 56 links: length 33 cm - 61 links: length 35 cm - 66 links: length 40 cm - 72 links: length 45 cm - 78 links: length 50 cm OREGON