【Brush Cutter Kit Size】5mm L-wrench size: 128mm/5.04in, T-wrench size: 140mm/5.51in, driver plate diameter: 80mm/3.15inch, Clamp Nut Diameter: 25mm/0.98inch, Diameter ofthe thrust washer: 42 mm / 1.65 inch. 【Suitable Replacement】This blade attachment kit is designed to attach many types of blades to the weeder, edger, brush cutter, grass trimmer and lawn mower. 【Easy to Install】Replacement Brush Cutter Adapter Maintenance Kit. Adapter retainer washer plate service kit for Stihl Brushcutter. 【Good Compatibility】Stihl Grass Trimmer Installation Aid. Fits the following models: Stihl FS40C FS55R FS56R FS36 FS80 FS81 FS85 FS90 FS10 FS110 FS120 FS130 FS130R FS200 FS200R FS250 Sarlo SS-18 Specification: Material: Plastic + Steel Riding plate diameter: 80 mm, Collar nut diameter: 25 mm, Thrust washer diameter: 42 mm Compatible with: for thermal stihl echo ryobi brushcutter Package includes: 1 x Thrust Washer, 1 x Rider Plate, 1 x Thrust Plate, 1 x Collar Nut, 1 x T-Wrench