3-tooth weeder blade fits Stihl, Echo 1 (25.4mm) or 20mm shaft. Adapter spares Lawn Mower Blade Assembly as follows: Thrust Washer: 4130-713-1600; jumper plate: 4126-713-3100; Collar Nut: 4126-642-7600. 3.3 Tooth Brush Cutter Blade Fits: Stihl FS120 FS130 FS130R FS200 FS200R FS250 String Trimmer. Perfect kits for your Stihl trimmer. The 10 inch brush cutter blade is ideal for weed eaters, wacker, edging, weed trimming, trimming brush cutter accessory. Package included 1 x Brush Cutter Blade for String Trimmer + 1 x Thrust Washer + 1 x Jumper Plate and 1 x Collar Nut + 1 x Screwdriver.