What You'll Get: Blade adapter attachment maintenance washer kit contains 1 x Thrust Washer/ 1 x Rider Plate/ 1 x Collar Nut/ 1 x Screwdriver, this does exactly what it should and is well constructed ！
Gardening Machine Lawnmower Kit Size: Screwdriver size: 128 mm/ 5.0inch, Rider plate diameter: 80 mm/ 3.15 inch, Collar Nut Diameter: 25 mm / 0.98 inch, Thrust Washer Diameter: 42 mm/ 1.65 inch. Please Do Check The Size of Blade Adapter Kit before placing the order.
Easy to Install: Easy to replace the string spool on the trimmer with the stihl blade adapter kit. The blade fit tight and there was very little vibration. Besides, can through Youtube videos to use it. Adapter Attachment Washer Plate Maintenance Kit Replacement For STIHL String Trimmers！