For Stihl HS46, HS46C, HS56C, HS81R, HS81RC, HS81T, HS81TC, HS86R HS86T,HT56C, KM56C, KM56RC, FC70, FC70C, FS40, FS40C, FS50, FS50RC, FS56, FS56C, FS56R, FS56C, FS70, FS70R, FS70RC, MS261, MS261C, MS271, MS271C, MS291, MS291C.
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