2 Pack 0.4mm A1 Mini/A1/A2L Hotend Kit Hardened Steel Nozzle for Bambu Lab | Removable Wear-Resistant Nozzle, Quick-Swap, High-Precision Leak-Proof, Heat-Resistant up to 350℃, with 2PCS Silicone Socks

So as everyone knows, there aren't any profiles for the Kobra 3 Max for larger nozzles than 0.4mm. However, it didn't take much to get these going. So far only used the 0.6mm and the prints are silky smooth even at 0.3mm layer lines. The nozzle outperforms the stock one in quality imo. I go through a kg of filament every few days so they get used quite a bit, but not a farm or anything just a hobby. Rare stringing, getting speeds around 80-100mm/s but still shaves off 1-2hours a print easy and more on even larger prints. Here are the settings I use in Anycubic Slicer Next Don't forget to go into printer settings on the actual printer and set the nozzle to 0.6/0.8. This will cause it to do a vibration calibration and PID for the new non-standard nozzle. If you don't do this it won't match the slicer profile and won't print. If you are wanting to do the 0.8mm nozzle just change the line widths to 0.82 and the two other options to 0.85 and then layer height 0.4mm plus the rest of the changes. Each new item that is different than the previous print I do a calibrate flowrate from the touch screen so don't even mess with the volume 11-12 in the settings that can be adjust but might be useful to avoid calibrating. Only have to redo it on spool/color change Process: Advanced on Layer height: 0.3 First Layer and Layer: 0.3 You can still use finer lines and could do 1st layer 0.3mm and Layer after that as 0.1mm. Which still prints surprisingly fast. Line Width(s): All 0.62 Except: First Layer 0.65 Sparse Infill 0.65 Precise Wall: Enabled Printer Settings: Basic Information Tab Support Multi bed: Enabled Z offset: -0.02 Extruder Tab Nozzle Diameter: 0.6 Layer Height limits: 0.1/0.3 (Min/Max) Wipe distance: 5 Filament Profile: I'm using PETG so just adjust the temps or whatnot. You want to bump your temps 5-10C at the nozzle Cooling: No fooling for first 5 layers Full fan speed at layer 6 Part Cooling Fan: 10/100 (Min/Max) Keep Fans always on: Disabled Don't slow down for outer walls: Enabled This keeps the fan in use only when needed and at a rate it calculates. Since with PETG you don't want a lot of fan. Settings Override: Retract on layer change: Enabled Wipe while retracting: Enabled Wipe Distance: 5mm Retract amount before wipe: 0 Sorry for no images, not a fan of sharing any IRL photos on the internet.

I used this hotend kit on a modded Elegoo Carbon Centauri and it worked perfectly. Everything fit well and installation was straightforward. One of my favorite features is the quick swap nozzles — it makes switching between different nozzle sizes fast and hassle-free. Having multiple sizes included (0.2, 0.4, 0.6) is a big plus. The hardened steel nozzles are a huge benefit. They give me the confidence to print abrasive and higher-temperature filaments without worrying about wear. Overall, a solid upgrade that performs exactly as expected.

Not sure what the tools are for but its good so far.

These fit and perform just like original product, fit was perfect with no heat issues. set comes with silicone nozzle sock and the best thing is price and how fast you can get the items. I have used other products from this maker, and all are a solid replacement option. Don't be afraid of trying, have used these for lots of prints and they produce exactly as expected. Each nozzle seems to be exactly like the oem can't see any difference and had to change nothing on printer, installed and went back to printing.

This product works flawlessly and I installed in less than 30 seconds

Great replacement hot end for a Bambu A1 that fits and has print quality like the OEM version and the “two pack” means you have a spare ready at 3 am when the first one eventually wears out.

Works great

While one extruder works perfectly fine the other constantly causes print failures. The one that functions correctly gives immaculate prints but the other leaves holes in the print, constantly causes spaghettification, or causes the hotend to cover itself in filament clogging it. Both nozzles seem sturdy and install like an OEM hotend however unless you're willing to take the risk of a bad hot end it would probably be best to spend the extra $10 on an OEM part for Bambu Labs. In the photo you can see a print failure on the left and on the right it came out fine. This test was done twice with the same results using Bambu's calibration test through Bambu Studio.

Absolute Waste of money, after 2-3 hours of printing both my printer has clogged extremely and had to change the Hotend Heating Assembly to fix the printer costed around 5-6k