This set contains eight hardened steel MK8 nozzles in sizes from 0.2 to 1.0 mm, plus a storage box. Hardened steel resists abrasion from carbon-fiber, glass-filled and glow-in-the-dark filaments, which round out a brass orifice within a few spools. The size range covers fine detail and fast, thick-layer prints.
Steel moves heat to the filament more slowly than brass, so print temperature may need a small increase to maintain flow. Against the brass kits in this guide, it costs more per nozzle but lasts far longer with abrasive material. For plain PLA, brass is the cheaper and more conductive choice.
Ownership is simple: keep the nozzles in the box, label the size, and swap hot to avoid stripping the thread. Confirm that your hotend uses the MK8 thread before ordering.
What works
- Hardened steel resists abrasive wear
- Five sizes cover fine to fast printing
- Storage box keeps sizes organized
- MK8 fit works across many printers
Watch out for
- Slower heat transfer than brass
- Higher cost per nozzle
- Wasted on plain PLA printing
Spec sheet
- Material
- Hardened steel
- Count
- 8 pieces
- Sizes
- 0.2, 0.4, 0.6, 0.8, 1.0 mm
- Thread
- MK8
- Extras
- Storage box






