E3D E3D v6 Extra Nozzle - Hardened Steel - 1.75mm x 0.80mm

E3D offers an excellent selection of 3D printer nozzles, and these hardened steel units are a must have! They've post-processed their steel nozzles with a combination of thermal and chemical treatments to keep you printing in carbon fiber, metal, and other abrasive filaments without fear of wear and tear.

These E3D nozzles are available in all of the sizes that E3D offers in brass: 0.25, 0.30, 0.35, 0.40, 0.50, 0.60, and 0.80mm. Try one of each today and customize every print!

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If you've been printing carbon fiber, metal, or other abrasive filaments with a brass nozzle, you might have noticed they accumulate some pretty significant wear and tear after printing for awhile. E3D decided to do some testing to get a better idea of what the wear rate is on their standard brass nozzles.

The nozzle on the left is a new, un-used nozzle, and the nozzle on the right printed 250g of ColorFabb XT-CF20 filament. As you can see, the results are striking. The tip is worn down from abrasion, and even worse is the diameter of the nozzle being opened up.

E3D has been offering stainless steel nozzles for some time, and while they are naturally wear resistant (tested to be around 30% of the wear rate of brass nozzles), they weren't specifically designed with abrasive materials in mind. 

The solution? Material science! By post-processing steel nozzles with a combination of thermal and chemical treatments, E3D created an extremely hard and wear resistant nozzle to tackle all of your specialty prints.


The nozzle on the left is the previously pictured brass nozzle after printing 250g of carbon fiber filament. E3D's "Hardened Nozzle" on the right is pictured after printing 2.5 KG of not only carbon fiber filament, but also glass filled filament as well. That's ten times the amount of material that the brass nozzle was put through, with no observable wear!

The dark, sometimes uneven looking coloration is normal, and is caused by the thermal and chemical treatments.

You can easily identify all the nozzles in the series by looking at the markings on the flats of the hex head. See below to help you identify what each set of markings means in relevance to size. 

  • 0 markings = 0.25mm
  • 1 marking   = 0.30mm 
  • 2 markings = 0.35mm
  • 3 markings = 0.40mm
  • 6 markings = 0.50mm
  • 4 markings = 0.60mm
  • 5 markings = 0.80mm


These nozzles have M6x1 thread, which makes them compatible with many printers. Some common printers with this thread size:

1.75 mm Nozzles
  • Robo3D R1+
  • SeeMeCNC Rostock MAX V3
  • OpenBeam Kossel Pro
  • Prusa i3 MK2
  • MAKEiT Pro
  • Makerbot Replicator
3 mm Nozzles  
  • Ultimaker 2+ and older Ultimakers with the Olsson block upgrade.
  • Lulzbot TAZ 5 and 6
  • Lulzbot Mini

If you are unsure about your printer, ask the manufacturer about their nozzle thread size.

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