The video shows a person's hand using a screwdriver to tighten a screw on a piece of machinery. The person's hand is visible in the frame, and the screwdriver is being used to turn the screw clockwise. The machinery appears to be made of metal and has several other screws visible in the frame. The person's hand is steady, and they seem to be experienced in using the screwdriver. The background is blurred, but it appears to be an indoor setting with artificial lighting.