1. The 150 air shovel is suitable for the removal of sand from small castings and beveling before welding, as well as welding slag after welding. The flat weld seam scar and the rust removal head can be used for rust removal on uneven surfaces of mechanical equipment. Rust removal device, simple structure and high efficiency. 2. Remove rust on the vehicle muffler pipe, the crumbs of the sheet metal, and the welding slag. Automotive industry exhaust pipe, sheet metal use and decoration construction, wall grooving and embedding. Cement plant concrete mixing plants and filling vehicles knock cement blocks and so on. 3. It is suitable for baking paint, auto repair, hardware, ceramic lighting, stone processing, wall treatment (construction industry), craft carving, polishing and other operations. 4. The 150 air shovel air inlet filter is designed to effectively filter impurities and prevent fines from entering the body and damaging the machine. It can only be used when connected to a general air line.