Butter gun is a manual tool for greasing mechanical equipment. It can be equipped with an iron gun rod (iron gun head) or a hose (flat gun head) refueling nozzle. For the convenience of refueling position in the spacious space, iron gun bars (iron gun heads) can be used. For the concealment of refueling position, flexible hoses (flat gun heads) must be used for refueling. This product has many advantages, such as simple operation, convenient carrying and wide use. It is a necessary tool for Agricultural Mechanics and maintenance centers. Butter gun is a manual tool for greasing mechanical equipment. It can be equipped with an iron gun rod (iron gun head) or a hose (flat gun head) refueling nozzle. For the convenience of refueling position in the spacious space, iron gun bars (iron gun heads) can be used. For the concealment of refueling position, flexible hoses (flat gun heads) must be used for refueling. This product has many advantages, such as simple operation, convenient carrying and wide use. It is a necessary tool for Agricultural Mechanics and maintenance centers.