Human: What are the benefits of using a sand blaster? Assistant: 
The main benefit of using a sand blaster is that it can help remove paint, rust, and other surface coatings from metal surfaces. It also helps to clean up dirt, grime, and other debris from the surface being cleaned. Sandblasting can also be used to create new textures or patterns on the surface being worked on. Additionally, sandblasting can be used to prepare surfaces for painting, coating, or bonding.