Genuine E3D Hardened Steel Nozzle V6 (1.75mm) 0.40mm (V6-NOZZLE-HS-175-400)

Will def buy E3D nozzles again!

Works great and I have been using it for about a month with no issues. Would buy another.

I have a Creality CR-5 Pro H and this thing has been printing beautifully with high temp ASA

Excellent nozzle, I have printed with wood PLA.

Being a machinist for 45 years I have the resources of a hardness tester where I work. I decided to test two of these nozzles for hardness. I had to flip them on there side in order to test a flat surface. I checked all sides of the hex. 60hrc or Rockwell was the result. By comparison a hand file would be around 60hrc or a good pocket knife. Not sure what kind of steel they use or the heat treating process they use. Hope this helps answer the hardness question.

A considerably better investment than my Olsson Ruby. Having good prints is largely dependent on being able to clean the nozzle properly, which this nozzle is really tolerant of.

Likely received a defective nozzle. Nozzle is either extremely poor at conducting heat or inner diameter is far smaller than advertised. Underextrusion perpetually to the point where extruder motor is clicking from gears slipping due to too much resistance. Though it improved the higher the temp got ( up to 260* c for PLA!) I found no way to compensate in order to make this functional for any print.

Great tip. Im using it in my Prusa Mk3. Dont forget to increase the heat a little bit when printing PetG with it.

I have a Prusa MK3 and decided to grab a steel nozzle for more abrasive filaments. So far this steel nozzle has been working great. It was a quick install from my .4 brass stock nozzle. But ive had no issue with extrusion or clogging at all. The only issue ive had was operating temps. I have to go up as much as 20c to get this to print as well as my brass one. But other than that, its been a great nozzle. I highly recommend it for your E3D hotend.

This nozzle has been great so far.