Comes with a 0.4mm brass nozzle.
You can change your early “version 1” hotend of the CB3 to this one to benefit less clogging. Of course you need two for the CB3.
It won’t fit other CraftBots than the CB3.
The nozzle is “about” the geometry of the Volcano of E3d, but has a 0.75mm mounting thread in stead of the e3d 1.0mm thread.