How to grind the blade of electric shaver?

1. First, remove the head of the electric shaver and apply a proper amount of toothpaste.

2. Apply toothpaste evenly by hand.

3. Next, install the cutter head on the shaver, turn it on and idle for two minutes.

4. Next, brush the cutter head with a toothbrush.

5. Then put the razor in water and clean it.

6. Finally, install the razor head, as shown in the figure below.