In the video, a person is seen using a welding torch to weld a metal gear. The gear is placed on a table, and the person is wearing protective gear. The welding torch is held at a certain angle to the gear, and bright sparks are seen as the welding takes place. The gear appears to be made of steel, and the welding is being done on its teeth. The person's movements are steady and precise, indicating experience with welding. The background is dimly lit, and the focus is on the welding process.