Super Wear-Resistance | Using the world's leading ultra-high hardness tungsten carbide (hardness 2700Hv (up to 2900Hv)), super wear resistance ensures long-term printing without wearness of nozzle hole and tip flat. High Temperature Performance | Composed of tungsten carbide with super hardness and excellent conductivity, maximum printing temperature can be 550. Low Pushing Force | Tungsten Carbide Nozzle with high purity more than 99.98% and high thermal performance keeps an even temperature of nozzle tip during printing, thus guaranteeing a stable extrusion. Faster Speed | Due to the high thermal performance of the nozzle in general, the printing speed can be pushed even further without sacrificing the quality. Unique passageway in the nozzle improves the flow rate at the inner hole faster. Low Friction | The whole nozzle is applied with coating after adding a hard and nickel plating layer. Surface friction coefficient is as low as 0.05 which makes the nozzle with clean printing, without plastic sticking to it. coating Friction coefficient is only 0.05, effectively avoiding molten plastic sticking to the nozzle; Coating thickness 2.0m, without effects on any dimension accuracy; Maintaining good lubrication and wear-resistance up to 300; Strong adsorption capacity, coating hardness HV2200; Stable properties, non-, non- and insoluble in other solvents. Specification: 0.4mm Color: Black Material: Tungsten carbide Package Contents: 1 x Tungsten Carbide Nozzle Only the above package content, other products are not included. Note: Light reflection 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.