Suitable for box-type manual sandblasting machine and box-type automatic sandblasting machine. It can be used for sand glass, sandblasting, surface polishing, mechanical parts. When the mixture leaves of the hose, the nozzle accelerates the air and abrasive. The taper and length of the nozzle inlet and outlet determine the pattern and speed of the abrasive leaving the nozzle. The composition of the lining material determines its wear resistance. Specially designed for surface cleaning, descaling and glass, aluminum alloy and other decorative surfaces, used for sandblasting and marble carving. Inner diameter of boron carbide nozzle: 6mm Operation: 1. The operator inserts the nozzle gasket into the contractor's threaded nozzle holder and screw it into the nozzle, turning it by hand until it rests firmly on the gasket. 2. After all relevant equipment is properly assembled and tested, the operator points the nozzle to the surface to be cleaned and presses the remote control handle to start spraying. 3. The operator holds the nozzle 18 to 36 inches from the surface and moves the nozzle smoothly at a rate that produces the desired cleanliness. Each channel should overlap slightly. 4. Once the orifice exceeds its original size by 1/16 inch, the operator must replace the nozzle. Colour: Silver Material: Aluminum + Boron Carbide Size: 35 x 20 x 6mm Package Contents: 1 x Sandblasting head 1 x boron carbide nozzle Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.