The video shows a person using a wrench to tighten a bolt on a piece of machinery. The person is seen turning the wrench clockwise to tighten the bolt. The machinery appears to be made of metal and has a shiny surface. The wrench is silver in color and has a long handle. The person's hands are visible in the video, and they are wearing a blue shirt. The background is blurred, but it seems to be an industrial setting.