The height scissors spring is one of the parts that usually wear out or damaged in this type of tool because, over time, this small piece usually expires preventing the proper functioning of your scissors.
Specifically, this spring is compatible with the height scissors model 99-4072. Making this change will be of great help for your tool to work properly again and have the right pressure, increasing the life of the scissors.
The strength and adjustment of this type of gardening tool will depend on this small spring, which translates into effective cuts. That's why it's important to keep in mind to change it from time to time.