Microswiss CM2 MK8 Nozzle for Makerbot, Creality Ender 3, Ender 3 S1, Ender 5, CR-10 Series - Copper Core - M2 Hardened Steel Tip - Superior Thermal Performance - Exceptional Wear Resistance (.4mm) is for makers who are tired of burning through plain brass nozzles the minute abrasive filament enters the picture. Carbon-fiber blends, glow material, metal-fill, and other wear-heavy spools can chew up softer nozzles fast enough that print quality starts drifting before you feel like the nozzle should be done.
The current Amazon listing shows 4.7 out of 5 stars from 106 global ratings, which is enough buyer signal to treat it like a real upgrade decision instead of a throwaway consumables listing.
What problem this nozzle solves
Standard brass is still fine for ordinary PLA and PETG, but it is the wrong long-game choice once your filament lane gets more abrasive. The buyer question here is not whether hardened nozzles exist. It is whether you want a tougher nozzle without accepting the same heat-transfer compromise that older hardened options often brought with them.
Who this fits best
- makers printing abrasive filaments often enough that brass starts feeling disposable
- Ender-class and other MK8-style printer owners who want a better wear-life upgrade instead of another cheap spare pack
- buyers who care about keeping a 0.4 mm nozzle in service longer without turning every material experiment into a nozzle-replacement cycle
Where it helps most
This kind of nozzle earns its keep when your bench already runs carbon-fiber PLA, glow filament, wood-filled material, or other blends that punish softer tips. It also makes sense for owners who want a more confidence-inspiring everyday nozzle on printers that see mixed materials and do not want to keep second-guessing when wear starts affecting line width, detail, or first-layer consistency.
Where it may be overkill
- if you mostly print plain PLA, PETG, or TPU, a cheaper brass spare pack may still be the smarter buy
- if your machine uses a different nozzle standard, this specific MK8 lane is the wrong fit even if the broader hardened-nozzle idea makes sense
Why this earns a standalone review
This is a real buyer-intent lane inside GoodPrints territory because nozzle wear changes print quality, maintenance rhythm, and consumables cost over time. The interesting question is not feature-count fluff. It is whether this nozzle is a smarter place to spend money than cycling through softer nozzles every time you run abrasive material.
Editorial take
This is a strong GoodPrints fit because it sits right at the intersection of maintenance, material choice, and print consistency. It is not flashy, but it solves a recurring problem for makers who are moving beyond basic spools and want their hotend setup to stop feeling temporary.
Should you buy it?
Buy it if abrasive filament is already part of your normal workflow and you want a more durable 0.4 mm nozzle on an MK8-style setup. Skip it if you are still living in standard PLA most of the time, because brass will stay cheaper and simpler for that use case.
Affiliate link: Check it on Amazon.
Common questions
Why not just keep using brass nozzles?
You can, but abrasive materials can wear brass faster than many buyers expect. Once wear changes the tip geometry, print quality and dimensional behavior can drift.
Who is the best fit for a nozzle like this?
Anyone printing abrasive materials often enough that nozzle replacement stops feeling occasional and starts feeling routine.
Is this mainly a specialty upgrade?
Yes. It is most valuable for buyers who already know their material lane is rough on softer nozzles or who want a sturdier everyday option for mixed-material benches.