Specifications: Material: Aluminum Operating air pressure: 60 - 120 PSI Inlet: 1/4 in Nozzle frame material: Nozzle size. : Length: 35 mm approx. Outer diameter: 15 mm approx Inner diameter: 4.5 mm/5 mm/6 mm/7 mm approx. Punch size: 135 x 150 mm 30 pg: (approx) The package includes: 1 x blaster pistol 4 x ceramic nozzles Designed for effective sanding, liquid and air cleaning of parts and surfaces. Can be used for etching glass, metal and other surfaces. Designed for effective sanding, liquid and air cleaning of parts and surfaces. High quality and carefully manufactured parts ensure uninterrupted flow of sanding material. Suitable for cleaning metal rims of car wheels, removing rust from fences, restoring exterior masonry, etc.