25PCS 3D Printer Extruder Nozzles Hardened Steel, Stainless Steel, Brass High Temperature Pointed Wear Resistant Nozzle 0.2 0.3 0.4 0.5 0.6 0.8 1.0 mm, for CR-10, Ender 3/ Ender3 pro, Prusa i3 (5)

Brass nozzles "do as expected." We use 0.2, 0.4 and 0.6 as our typical production heads and thus far they're keeping up with OEM heads. On one of our printers, the 0.4 seems to push quite a bit more than expected when feeding a new filament so there's a good chance it's closer to 0.6 in size, just stamped as a 4.HS (Hardened Steel) have a two-side cutout instead of a hex, so our tools for "quick replacement" don't work on these (thus why there's a wrench included) but it's not a deal-breaker. We only use HS on two of our printers which don't get a lot of exercise on a daily basis, so there's no rave review nor negatives to share at the moment.SS (Stainless) we've had issues with, though. I'm speculating they're not solid-stainless as they tend to require a higher than usual temperature, otherwise clogging is rather frequent; I'm going to guess they're plated brass and the blend of metals is seeping the heat outward.* You will want to test your filaments with a basic heat/speed block before running a print on a new SS nozzle.We ordered two sets this last time around and both sets were missing nozzles. (At the time, I didn't think to consolidate so they both went back.) Amazon didn't blink an eye... replacements were sent immediately and we held onto the originals just in case anything was missing from the new set; everything turned out well.

This nozzle kit has several extra 0.4 brass nozzles, which is nice since those tend to be the most widely used type. Otherwise, you get three of each size of nozzle, one for each material (brass, stainless steel, and hardened steel).

I bought this set because my husband talked about wanting to have the different types like steel and stuff. I saw this, and for the price it really wasn't a bad deal. Only issue I had was the package arrived opened which our mailman delivered and asked us to make sure everything was in it before he left but all 25 pieces were there.

Used for longer lk5 pro works great good selectiob

New to 3d printing and setting up spare parts for my used machine