Genuine E3D Hardened Steel V6 Nozzle - 1.75mm x 0.50mm (V6-NOZZLE-HS-175-500) Review (2026)

What this nozzle is

This is a genuine E3D hardened steel V6 nozzle sized for 1.75mm filament with a 0.50mm bore, identified by E3D's own part number V6-NOZZLE-HS-175-500. E3D rates its hardened steel nozzles up to 500 degrees Celsius, though the company notes on its own product page that this nozzle is not recommended for abrasive filaments run above 350 degrees Celsius, which is a useful ceiling to keep in mind rather than treating the 500 degree rating as a blanket recommendation for every abrasive material. E3D also marks each nozzle individually on the flats of the hex head, which helps confirm authenticity and track which size is installed.

Built for abrasive filaments

The main reason to choose a hardened steel nozzle over a standard brass one is wear resistance against abrasive filaments such as wood fill, glitter fill, metal fill, and carbon fiber reinforced materials. These filaments contain hard particles that erode a brass nozzle's bore relatively quickly, gradually enlarging the opening and degrading print quality and dimensional accuracy over time. E3D also recommends hardened steel for glow in the dark filament, since the phosphorescent particles used to create the glow effect are similarly abrasive. Buyers printing mostly with plain PLA or PETG will not see much benefit from switching to hardened steel and can stick with a standard brass nozzle.

Compatibility

This nozzle is built for E3D's V6 hotend and is also listed as compatible with the Lite6 and Titan Aero hotends, plus it works with Prusa's MK3, MK2, and Mini printers, which use E3D style hotend hardware. Anyone running a different hotend design should confirm the thread and heat break compatibility before ordering, since not every printer uses the E3D V6 standard even if it looks similar. Because this is sold as a genuine E3D part rather than a generic clone, it should match E3D's stated tolerances and thread fit more reliably than unbranded hardened steel nozzles that sometimes vary in bore accuracy or thread quality.

0.50mm bore size

At 0.50mm, this nozzle is noticeably wider than the 0.40mm size most printers ship with by default, which changes how it behaves rather than just being a drop in swap. A wider bore lays down more material per pass, which speeds up print times and can improve flow for filaments with abrasive fillers that struggle through a narrower opening, but it also reduces the finest detail a print can hold compared with a smaller nozzle. Slicer settings including line width and flow rate need to be updated to match the larger bore, since using default 0.40mm profiles with this nozzle will produce inaccurate extrusion and poor layer adhesion.

Who should buy it

This nozzle fits printer owners who regularly use abrasive filaments like wood fill, glitter fill, or carbon fiber blends and want a wider bore to keep those materials flowing well without excessive nozzle wear. It is a genuine E3D part rather than a budget multi pack of generic hardened steel nozzles, so it costs more per nozzle, which mainly makes sense for someone who wants a documented, individually marked part from the original brand rather than the cheapest available option. Anyone printing standard, non abrasive filament at typical detail levels is better served by a standard 0.40mm brass nozzle instead.

Frequently asked questions