Fits 25" Stihl Chainsaw Models 066, MS500i, MS660 & MS661 using a 84 drive link chain. Oregon Saw Chain Part Number 75EXL084E / 75EXL084 / 75EXLO84E / 75EXLO84. Standard Sequence chain. Designed to require less force from the operator to get through the cut quickly, Oregon PowerCut™ 70-Series EXL makes the job feel like less work.
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