3D Printer Neptune 4 Max 0.6 Nozzles Kit - Included 1pc 0.2mm+1pc 0.6mm+1pc 0.8mm+3pcs 0.4mm Hardened Steel Nozzles, High Temperature and Wear Resistant for Elegoo Neptune 4 Plus/4 Max

These are well made. Large prints wear brass nozzles too quickly, hardened should really just be the default. The 8 and 6 are prefect for a large format printer.

Same as factory.

El precio y la calidad... van de la mano

To start, this is an excellent product for the price, it has decent tolerance and will work in your qidi printer. The problems I will nitpick are that the tolerances and surface finish are bad compared to the oem qidi nozzles. I took some calipers to it, and it just isn't as good. So if you want many cheap nozzles, this is great, but qidi sells better ones for more. Also, if you want to have lots of nozzles nicer than these for a smililar price, i would reccomend juat getting one of those v6 nozzle adapters that are sold (the caveat being that those mostly become v6 only hotends once you install them) and getting v6 nozzles that are cheaper as they have a wider consumer base so the companies can give more higher quality nozzles for the price. I am also slightly worried about the 0.2mm nozzle as it appears to have a very rough surface, so i will anticipate clogs there.

Still using the first one of the 0.4s and been printing with abrasive filaments and the thing still looks brand new. No clogs. Having the other 2 sizes is huge plus as well. Highly recommended these nozzles for the price.

Prints with these are of high quality, zero issues!

Not even close to 0.4 mm on the hardened nozzles. the brass were to small also but could be gently largened with torch cleaning kit I own. That being said I would NOT recommend these. Waste of money!

Update: I had a small issue and I never reached out to them as it was well past return date. They reached out to me and were great about remedying. Give them a shot, I may have just gotten unlucky. I definitely will try them again as they do stand by their product.