Filament Diameter: 1.75mm
Thread: M6 Thread
Nozzle Diameter: 0.2mm /0.3mm/0.4mm/0.5mm/0.6mm/0.8mm/1.0mm
Material: Brass/Chrome Zirconium Copper
Compatible with: Ender-7/Ender-5 S1/spider or another similar Heater Block
Chrome Zirconium Copper Nozzle:
Max Printing Temperature: 450℃
Thermal Conductivity: 330W/m.k
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The nozzles are listed as "Chrome Zirconium Copper", but the silver colour is only a plating on the outside, they are either brass or copper! I used them to print about a half roll of Carbon Fibre filled PETG, and I had to keep raising the bed because the end of the nozzle was wearing off. The photo shows the extent of the wear, and you can clearly see that the nozzle is plated, not a solid hard material. These are the 0.6mm, and I do not know if they are worn internally, but having the end wear off when printing about 500g of material is simply not acceptable. I measured the new nozzle in the photo, and the worn one, and the length has decreased 0.36mm, or nearly the thickness of one layer. If you are purchasing these to print abrasive materials, don't bother....
Seems to be ok, nice website but shipped from China which I didn't expect....