Features: 1.Applicable to box manual sandblasting machine and box type automatic sandblasting machine. 2.Can be used for sand glass,sandblasting,surface polishing processing,machinery parts. 3.A blast nozzle accelerates the air and abrasive as the mixture exits the end of the hose. 4.Use 35*20*8mm spray gun core. The length of the gun core determines the speed of sand production, and the inner hole of the gun core determines the amount of sand produced. 5.The use of high-strength, high wear-resistant boron carbide nozzles.Has a service life much longer than that of nozzles made of cemented carbide/tungsten steel and silicon carbide, silicon nitride, alumina, zirconia, etc. Specifications: Dry sandblasting machine nozzle Material: Aluminum + boron carbide Color: Black + Sliver Boron carbide nozzle size: 35*20*8mm Outer diameter of air inlet: 13mm Outer diameter of sand inlet: 13mm Operation: 1.The operator inserts the nozzle washer into a contractor-thread nozzle holder and screws in the nozzle, turning it by hand, until it seats firmly against the washer. 2.With all related equipment correctly assembled and tested, the operator points the nozzle at the surface to be cleaned and presses the remote control handle to begin blasting. 3.The operator holds the nozzle 18 to 36 inches from the surface and moves it smoothly at a rate that produces the desired cleanliness. Each pass should overlap slightly. 4.The operator must replace the nozzle once the orifice wears 1/16-inch beyond its original size. Note: 1.The color of the actual items may slightly vary from the above images due to different computer screen,please allow 2-3cm error due to manual measurement,thanks for your understanding 2.It is normal that the surface of the product is a little worn, if there is severe scratches, please for replacement. Package Includes: 1 x Air Sandblaster Gun 1 x Boron Carbide Nozzle