Review on Set Of 10 Aokin 0.6Mm Brass Nozzles For E3D V5 V6 3D Printers And 5 Stainless Steel 0.5Mm Filament Cleaning Needles, Compatible With 1.75Mm Filament by John Clark

The best thing about them is that they are cheap! For a few paltry dollars, you can get get an entire set, nay, several sets, of nozzles for your E3D V6 compatible hotend. I have tried the 0.8mm nozzle thus far and it did require recallibration of my Prusa MK3S but turned out a decent print.I was curious as to how accurate the nozzle diameters were so I put them under a stereo microscope and took some pictures. I then used the 0.8mm nozzle diameter as reference to measure the rest of them. All were spot on except the 0.2mm one which varied in diameter between 0.16 and 0.20mm, but given that this is almost surely going to be unused by me, I'm not sure I care. The insides don't have burrs but they are not super smooth either: you can see the grinding pattern in the attached picture.Worth a buy? Yes, especially given that a single 0.4mm E3D nozzle sells for $25 on this site (don't know why!).