The video shows a close-up of a person's hand, which is covered in grease, as they work on a machine. The hand is using a tool to adjust or repair the machine. The person's hand is steady, and they seem to be experienced in handling the tool. The machine appears to be made of metal, and there are several cylindrical parts visible. The lighting in the video is dim, and the background is blurred, focusing the viewer's attention on the hand and the machine.