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

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.

Easily clogged. For my test run I printed Benchy and printed just fine. Second one I printed octopus for something a little bit bigger and 10 mins left on my timer that’s when I noticed a bad print and the nozzle started showing some goop around it. Third print was the octopi camera case and that’s when it totally clogged.

Quick delivery. Have to wait on a new hotend to try it out. Was getting horrible prints but I now do not think it’s the nozzle.

works better then the cheap brass one i tried first.

Lasted for 8 prints ...... dumb for the price super disappointed for the price brass lasted longer

Worked great but after 30 hours of print started to act like a stock tip does with carbon fiber going through it

completely useless after 1.2kg of carbon fiber nylon, i tested brass for the hell of it and i was able to get 500g out of it, and e3d hardened nozzles got multiple kg of CF nylon through it.

The threads are WAY too short to work for a Prusa i3 MK3s. The heater block will have to thread in so far that your carriage WILL melt.

I got these nozzles to print some carbon-fiber-impregnated filament, since theyre hard enough to not be worn out by the embedded fibers. I put one of them in the printer, leveled the bed, and did a print with regular PLA. The quality (with the exact same settings) was noticeably poorer, with a rough finish. The nozzle seemed to do some kind of weird dribble with the filament, instead of letting it come out in a smooth stream. I slowed the print speed down and the dribbling effect was less severe. However, I was able to easily crush the printed object in my hand, where the same print with the brass nozzle was strong enough that I could barely bend it. I tried a few other prints and wasnt able to get decent print quality. Thinking I may have messed up my printer somehow, I put the brass nozzle back in and leveled the bed. Its printing with that nozzle right now, and the quality of the print looks good. Filament is flowing smoothly, and the print doesnt have a bunch of weird little boogers and other crap on it like it did using the hardened nozzle. I may be doing something incorrectly, but I dont know what that might be.

It fit perfectly like a charm in my creality cr10v3, screwed in nicely, leveled nicely, felt really good but the filament would not come through no matter what i did, like it came clogged. I indeed got the correct size nozzle .04 for the filament and i was using anycubic PLA 1.75mm filament. The second i installed and tried to print, nothing would come through. I heated up past the normal temp that i use for my pla (210c) up to 250c and still nothing would come out. I switched back to my old brass nozzle and immediately it started working. So i am not sure if i did something wrong here, but even if that was the case then there needs to be some instructions since this does not work/function like normal nozzles. Or at least it did not work for me at all.