Replacement nozzles for E3D hot end available in 0.25-0.8mm diameter for both 3mm and 1.75mm filament.
This is more than just a replacement, it is a serious upgrade that is also backwards compatible. This means that it works on E3D hotends older than the V6. It also works well on some other hot ends. We’ve tested it on the Reprapdiscount Hexagon and Lulzbot Hexagon hotends with good results.
Note that the standard hot end is brass. This is the best choice for most materials. However, for abrasive materials such as carbon fiber, glow in the dark, and stainless and iron filled materials, the stainless nozzle will provide a longer life. However, while the stainless is a longer life, it is lower thermal conductivity than brass so higher temps and/or slower speeds may be required.
The large bore has been elongated to give a minimum small diameter nozzle length. This reduces the potential for clogs.