SIQUK 22-Piece 3D Printer Nozzle Kit - MK8 Nozzles (0.2mm to 1.0mm) with Storage Box - Compatible with Creality CR-10, Ender 3, Makerbot & Most FDM 3D Printers - Perfect for PLA, ABS, PETG Filament Printing

Ordered wrong size but product is great other than thatNo idea the accuracy but they work! I will say that the while the pack contained the overall correct number of nozzles it didn’t have the correct number of each that it said… there were way more .4mm nozzles and less of other sizes…I bought these to replace a blocked 0.4mm nozzle on my Kossel Pro. At first the only difference seemed to be that they're about 1.4mm taller than the usual E3Dv6 nozzles, so recalibration for the extra height was no problem. However the first 0.4mm nozzle I took from the pack jammed straight away. Then I had fun with one of the 1.0mm nozzles, which shortened my print times to a fraction of normal, with minimal loss of quality at 0.2mm layer height. However when I switched to a 0.4mm nozzle again it jammed after printing a few layers. I was unable to determine the exact cause of the jam, but upon disassembling the hotend I found the block was loose and had leaked at the top. The shorter threads of these nozzles mean the E3Dv6 heatbreak does not meet it inside the block, unless you screw the heatbreak in so far that the narrow part is inside the block, which defeats the design. Even then the heatbreak tightens down onto the block against the 7mm threads that hold the heatsink, conducting heat away from it and further defeating the design. And then if you screw the heatsink on all the way it contacts the block as well, also defeating the design. I guess you could leave the heatsink unscrewed a little, but the narrow part of the heatbreak is inside the block. If you left the narrow part of the heatbreak out it would not be held tightly in the block and would quickly loosen from the motion of the print head and begin to leak.Take a look at my photo to see what I mean. The heatbreak is screwed down as far as it can go into the block and the heatsink is touching the block. The white stuff around the nozzle is thread tape. I use thread tape on the nozzle and heatbreak to stop leaks and it works well. I guess these nozzles can be made to work, I used the 1.0mm nozzle for several days without a problem, but the finer nozzles seem to jam for some reason that I can't explain. In short, I don't think these are a good choice if your 3D printer has an E3Dv6 style hotend.I'm using these with an Ender 3 Pro. So far I've only tried a 0.4 mm nozzle (to replace a clogged one) and a 0.8 mm nozzle.The 0.4 mm nozzle works exactly like the OEM one that came with the machine, and is pretty much indistinguishable from it. My flow calibration did not change from the OEM nozzle, so I assume the hole size is dead on.The 0.8 mm nozzle I used to make thicker vase prints (spiralized) and it worked great for that purpose.They come neatly packed in a little plastic clamshell case with separate labeled plastic baggies for each size. The nozzles also have the size molded on the side, so you don't have to remember which is which.Changing the nozzle was easier than I expected, and I barely burned my fingers at all.All the nozzles worked fine except the .2 mm nozzle. While all the others fit my CR10 without any problem, the .2mm seemed like it was designed for less than 1.75mm filament because I couldn't put it on at all.This is a great set, one month after buying I have already used several of the different sizes for different prints. I haven't had any clogs with them so far, I mostly have been using the 1.0mm recently for larger prints. I definitely would buy to have the options available on hand.Good set of hot ends. Why 3 stars instead of 5? There are small brass chips inside of nozzles. You have to clean it carefully before usage to prevent clogging.Using these on my Anycubic i3 Mega-S:My first time using these Nozzles was a mess. Come to find out that the end/screw part of the nozzle was shorter than the stock one that came with my printer. All I had to do was push the Bowden tube down further to get closer to the nozzle. After that my prints came out great again. So just a warning if your using it on this specific printer. It’ll work but you’ll have to work on that Bowden Tube. Also, you’ll have to re-level your print bed since these nozzles actually protrude out more than the standard ones provided by Anycubic. Not much of an issue there just common sense but thought I’d mention to anyone out there with the i3 Mega.I bought these mainly for the 0.2mm nozzles. I fitted one to my Voxelab Aquila and after a bit of messing about to get the heat and speed right, I can now print 1:148 (N scale) prints and resolutions impossible to achieve with the standard nozzles. The only slight hiccup I had was on my first print where I had spider webs and blobs all over it. Turned out to be my fault as I hadn't tightened the nozzle enough and filament was leaking around the top! A quick clean and refit and I've had pretty much perfect prints every time. I'd thoroughly recommend these nozzle sets at the price they're being sold.Bought these for my Prusa i3 mk2. These arrived but I noticed they had a lot more of a point compared to my let's say dumpier nozzle. I reset the height and did a test but noticed a lot of stringing. No matter what setting I did and filament I tried, I couldn't stop it from stringing. I suspected it had something to do with the point and how much hotter it was getting. I bought some cheaper nozzles that looked the same as my old one, reset everything and did a string test and it printed perfectly straight away. They clearly work with other people but from now on I'll buy the same shaped nozzle as the original.Great value you get lots of 0.4mm nozzles but after changing to a 0.2mm nozzle of which you only get 2 of one of the 0.2 nozzles was more like 0.05mm it was labeled 0.2mm but change to the other 0.2 in the pack and bam amazing prints worked a treat. only reason for the 3 star review is the tolerances on these nozzles are clearly not great and concerns me on how many nozzles i may have that are off in tolerancesThe nozzles them selves are nice enough and cheap.These were the wrong nozzles for my head as it turned out.They will fit a j type head but the thread is too short and the nozzle tip angle makes them longer needing bed adjustment.If you have an anycubic i3 mega these are probably wrong if you run a standard hotendBefore buying these nozzles to fit my TEVO Tarantula i had a lot of issues with layer adhesion and accuracy.as soon as i replaced the stock nozzle for one of these i saw an immediate difference,The variety of nozzle sizes are fantastic although the standard 0.4mm seems to be most practical. luckily they supply you with more 0.4mm than the others.This set is fantastic and i will be buying again thanks to the quality and effortless printing.