Bevel gear brush cutter head compatible with STIHL TUBE DIAMETER: 25.4 mm For models: F260, FR130 T, FR350, FR410 C, FR450, FR460 TC, FR480 C, FR480, FR85 T, FR85, FS100 R FS100 RX, FS100, FS110 R, FS110, FS120 R, FS120, FS130 R, FS130, FS200 R, FS200, FS240 RC FS240, FS250 R, FS250, FS25-4, FS260 C, FS260 RC, FS36, FS40, FS44, FS460 RC, FS65-4, FS72"