1piece High Temperature Sharp Hardened Tool Steel MK8 Nozzles 0.4mm for 1.75mm Makerbot, Creality CR-10 All Metal Hotend, Ender 3/ Ender3 pro, CraftBot, Prusa i3 3D Printer

Not actually 0.4mm it’s slightly smaller, and clogs constantly.

works better then the cheap brass one i tried first.

This is an important buy for those that appreciate attention to detail. This nozzle appears far more durable than the brass nozzle that comes stock. Small but noticeably worth it as an upgrade.

Great nozzle, well made. If you need tougher than this, get ruby nozzles. For everything else, this is all you need. Dimensions, threads, and interior polish are spot on and the aperture is centered with good wall thickness. Angle is appropriate for non-planar FFF.

I recently purchased this nozzle with the intent of using it for printing heavier materials and lasting longer, which I believe is what draw a lot of others to this nozzle. When using regular brass nozzles, heavier materials such as carbon fiber and wood will wear the nozzle down more rapidly to the point where you will likely need to replace it often (roughly every 1-4 weeks depending on how frequently you print). The drawback to going with a steel nozzle is that you will usually need to adjust your print temperatures by roughly 10c to be able to print with the same materials. Unfortunately, increasing temperature 15c or even 20c wasnt enough to work in this case, even on a fully upgraded CR10. When the material was starting to come out evenly, my extruder (a BMG) was having difficulty pushing materials through, often causing them to get backed up and my extruder to slowly give out. I practically had to push the door in firmly and hold it in to put enough pressure on it to push the material though evenly. I will state though that when I switched to regular PLA it seemed to work pretty well with no issues, but if you arent able to print tougher materials easily then whats the point of purchasing this item? That point more or less undermines one of the main purposes of upgrading to a steel nozzle, though I would imagine that it would at least last a bit longer than a brass nozzle for printing regular PLA. Overall Id give this a 2.5, rounded up to a 3.

I am not an expert, but I bought this for printing wood PLA and it just does that.

Just another bronze nozzle with an easy to remove coating

Will purchase again!

With the original ender 3d printer ....its a must have upgrade

works great