[This will fit the following pole saws when you want to run 1/4. 043 chains Stihl HT70, HT70K, HT73, HT75, HT101, HT102, HT103, HT130, HT131, HT132, HT133]. 00006402001 Stihl Spur Sprocket 1/4 x8 tooth Stihl Pole Saws [NOTE: Running 1/4. 043 Chains].
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