How do you level and test hair clippers?

To level hair clippers, start by adjusting the blade alignment so that the cutting edges are even, ensuring they don't snag hair. Use a level to check the clipper's body for any tilt, and adjust the screws or feet as necessary to stabilize it. To test the clippers, run them through a small section of hair; they should cut smoothly without pulling or tugging. Regular maintenance, including cleaning and oiling the blades, is essential for optimal performance.