and high quality Low density, high hardness and strength corrosion. Low thermal conductivity. Super duarable. Density: 2.48/cm3 Microhardness: 3500kgf/mm2 Flexural strength: 400MPa Melting point: 2450 Life for each material: Steel Shot: 2000-2500h, Quartz sand: 1000-1500h, Corundum: 500-1000h Dimensions: 35x20mm/1.38x0.79inch Bore diameter: 3mm, 4mm Model Number:Sandblasting Nozzle Power Type:Pneumatic Usage:Home DIY Cup Volume:other Application:Sandblasting Nozzle Type:Sandblasting Nozzle colour:black Material:Boron carbide Package Contents: 1 * Sandblasting 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.