The video shows a person's hand holding a tool and using it to work on a machine. The person is using the tool to make adjustments or repairs to the machine. The tool appears to be a wrench or similar type of hand tool. The machine being worked on is not clearly visible, but it seems to be a piece of equipment with various parts and components. The person's hand is steady and precise as they manipulate the tool, suggesting that they are experienced in using it. The lighting in the video is dim, and the background is not clearly visible, focusing the viewer's attention on the action of the person's hand and the tool.