009, 009L, 010, 011 012, 015, 017, 018, 018C, 019, 019T, 020T, 021, 023, 023C, 023L, E 10, E 14, E140, MS 170, MS 171, E 180, E 180C, MS 180 C-B, MS-180C. FIT STHE FOLLOWING STIHL MODELS This results in decreased cutting performance, lower chain life, and increased stress on engine and drive components.
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