Save money because you won't have to replace the nozzles as often.Lasts longer than tungsten carbide nozzles, while its cost is less.The article ensures a strong constant jet stream because it maintains a maximum time with the same internal diameter.Reduces fatigue in your air compressor caused by worn nozzles that also save money on your electric bill and reduces the chance of replacing overloaded compressor parts.Reduce time to replace nozzles so you can focus on doing the projectSpecification:Density: 2.48 / cm3Microhardness: 3500kgf / mm2Flexural Strength: 400 MPaMelting point: 2450 CelsiusUseful life for each material: steel: 2000-2500 h, quartz sand: 1000-1500 h, corundum: 500-1000 hColour:BlackMaterial:Boron carbideSize:80*20*6 mmPackage Contents:1*Boron Carbide Blast NozzleOnly 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.