Lawn mower balancer $ 4.05 Lawn mower blade balancer Diameter range: 9.5/11/12.5/15.8/19/22.5/25.5/28.5/31.5/35mm (There is an error in manual measurement, the actual size is subject to the actual product received) Purpose: When the lawn mower blade is polished and tested for balance, you can select the steps of different diameters on the blade holder according to the blades of different apertures for testing. It is easy to see which end of the blade is lighter and which end is heavier, and the heavier end is re-ground Until the weights at both ends are the same, the blade balancer has a simple structure and good practicability, and can quickly test the blade balance of the lawn mower.