Cutting more evenly, weeding more thoroughly and quickly. The first kit: 1 x Thrust plate guard washer (6 teeth)/ 1 x Thrust washer/ 1 x Rider plate/ 1 x Lock nut(m10x1.25). The second kit: 1 x Thrust washer(10 teeth)/ 1 x Rider plate/ 1 x Collar nut(m10x1.0)/ 1 x Screwdriver.
eBay