In the video, a person is seen using a tool to tighten a bolt on a piece of machinery. The person is wearing black gloves and is using a tool to apply pressure to the bolt. The machinery appears to be made of metal and is located in a workshop setting. The person's actions are deliberate and precise, indicating that they are experienced in this task. The tool used is a type of wrench, which is commonly used for tightening or loosening bolts. The workshop is well-lit, and there are various tools and equipment visible in the background. The person's focus is solely on the task at hand, and they do not interact with any other objects or people in the video.