AJSPOW 30PCS 0.4mm 3D Printer Extruder Brass Nozzles for Makerbot MK8 Creality CR-10 Ender 3 3Pro 5 with 5PCS 0.4mm Stainless Steel Nozzle Cleaning Needles and Storage Box

Replaced the OEM 0.4 mm Ender 3 nozzle with a 0.4 mm nozzle from this pack. The OEM nozzle was quite old and worn, so the replacement made an obvious improvement. Process was simple - remove old nozzle, install new nozzle, adjust z-height (baby stepping with BL Touch) and I was off and printing again. The image is the first print done after replacing the nozzle.Not all the nozzle openings are the same size. I don't have a way to measure 0.4 mm, but it's obvious some are slightly larger than others. I ran the declogging needle through each nozzle and found that about half had a nice fit to the needle. All openings seems to be fairly well centered.Overall, I'm very satisfied with the purchase and would recommend.

All 30 nozzles were as close to dead-on 0.4 as I could validate (using cleaning needle measured via micrometer to 0.39). They are much closer to the OEM nozzles, having a bulkier hunk of brass at the nozzle end, making them much easier to grip with the wrench. In the images, the AJSPOW nozzles are on the left and my first set of replacements from a different seller are on the right. My first set of replacements were all too small, had to try to ream them out with the needle which didn't work very well. The finish was maybe a little nicer but that doesn't count for much when they print like garbage. Such a relief to be printing well again after installing these.The old nozzles would jam constantly too, not sure if this was a nozzle problem or something else, will update the review of these nozzles solve that issue.

I replaced my old nozzle on my Tronxy x5sa when I noticed it was producing inconsistent filament thickness. I installed the new nozzle from this kit and was worried when the filament thickness seemed too thick. I thought it was the wrong size so I pulled out my calipers and checked. It was exactly .4 thick. My old nozzle was worse than I thought. These should last me a while. Thank you!

The product photo shows both the nozzles and a tube of cleaning tools, which seemed like a nice bonus. However, all I received were the nozzles. After looking more closely, the product description doesn't say that cleaning tools are included, so they shouldn't be shown in the product photo - that constitutes deceptive advertising in my book. :-(I examined the bore of the nozzles under a microscope, and as you can see in the photo, there is a little bit of "flash" at the edge the hole, probably caused by machining the flat tip of the nozzle after drilling the hole. Not a big deal as it will probably disappear after a few prints.I measured the actual hole size using some micro drill bits and a precision micrometer. A drill bit measuring 0.46 mm easily passed through the hole, while one measuring 0.51mm did not. That tells me the actual hole is probably 0.48 mm or so - a bit larger than the 0,40 mm spec.Overall, these are not bad nozzles for the price.

Basic nozzles. Did your head smack the build plate? replace with one of these!Did you print some carbon fiber? replace with one of these!Did you just print so much that you have weird printing issues that don't fit other causes? replace with one of these.Seriously, now if it's not obviously something with my axis, I just replace the nozzle. Takes no time at all and is more frequent than I though I would change them. It just ensure that my prints are good each and every time.

You get what it says on the tin, a pack of nozzles in varying widths. If I had to complain, I'd say that you get TOO many 0.4 nozzles, I don't think I'll ever use them all. It might have been nicer to get 6x of those and 3x of each other size.Either way, I'm satisfied. It's great being able to experiment with the varying nozzle sizes, I'm quite enjoying the results of the 0.6mm with a 0.2mm layer height. Some real clean surfaces without any ironing. And who knows, maybe down the line I'll use more exotic filaments that require more frequent nozzle replacements.

Received them today and one of the nozzles is only about 1/2 of an actual nozzle. Looks to be a manufacturing defect. I will be installing one of the nozzles later and running a test print. All but the one appear to be satisfactory.I'll update my review after I've had a chance to test at least one of the nozzles.Edit:I have installed one of the 0.4 nozzles and print quality & accuracy are excellent. I'm looking forward to experimenting with some of the other nozzle sizes.

Well after fighting my printer for several month to find out the high cost nozzles I had purchased from another seller were undersized and causing some of my trouble I ordered these and measured the bore in every one they were all right on but 2 which were slightly under and being brass will wear in to proper size. that is good enough for the price in my book.