How to adjust the Spirit Level Tools

The Spirit Level Tools is widely used in housing decoration or later testing.

How to adjust the Spirit Level Tools: Take a method of debugging, because there is a fixed screw on both sides, one end can function, one end can function as an adjustment. We can adjust to both sides before and after the dedicated screwdriver until the water is located in the middle position, and then tighten the screw until it can be qualified.