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 contact us for replacement Package Includes: 1 x Air Sandblaster Gun 1 x Boron Carbide Nozzle