Micro Swiss CM2 MK8 vs Creality Hardened Steel MK8 Nozzle Kit
Micro Swiss CM2 MK8 vs Creality's hardened steel MK8 kit on maker data: hardness, thread, sizes, Ender-3 fit. Pick Micro Swiss for specs, Creality for spares.
On this page (11 sections)
Pick the Micro Swiss CM2 MK8 if you want one fully specified nozzle with a maker's limited lifetime warranty against wear, or you own an Ender-3 S1. Pick Creality's Hardened Steel Nozzle Kit if you own an original Ender-3 or Ender-3 V2, want several hardened spares from your printer's own maker, and can check the sizes on the listing. Both are sold as wear-resistant replacement nozzles for older Creality printers, and both makers name the original Ender-3 and the Ender-3 V2. Micro Swiss documents its CM2 in detail, including a hardened steel tip heat-treated to 68 HRC and an M6x1.0 thread. Creality's kit page lists five feature lines and a long list of compatible printers, but no thread, length, hardness figure, temperature, or size breakdown. Neither maker publishes a maximum temperature for these nozzles, and neither lists the Ender-3 V3 family.
Who this comparison is for
This page is for owners of a Creality Ender-3, Ender-3 V2, or Ender-3 S1 choosing between two wear-resistant replacements for a screw-in nozzle: the Micro Swiss CM2 MK8 Nozzle (Hardened Tip) in 0.4 mm, SKU M2901-04, and Creality's High-end Hardened Steel Nozzle Kit. Neither maker lists the Ender-3 V3, V3 SE, V3 KE, or V3 Plus, so we don't claim either fits them. If you're not sure which nozzle system your printer uses, start with our guide to choosing a replacement nozzle. For more printers and nozzles, see the replacement nozzle shortlist. If your printer uses a V6-style hotend instead, see Micro Swiss CM2 RepRap (V6) vs E3D V6 Brass Nozzle.
| Product | Best for | Skip if | Link |
|---|---|---|---|
| Micro Swiss CM2 MK8 Nozzle (Hardened Tip) (0.4 mm (Micro Swiss SKU M2901-04)) | Original Ender-3 owners who want one wear-resistant nozzle with a copper-alloy body and a hardened steel tip. | Your printer uses a quick-swap or all-in-one hotend. | View on Amazon (opens Amazon in a new tab) |
| Creality High-end Hardened Steel Nozzle Kit (MK8) (8 pcs (Amazon model 3D-Hardened Steel Nozzle Kit); sizes not stated by Creality) | Original Ender-3 owners who want wear-resistant spare nozzles for occasional abrasive filaments. | You own an Ender-3 V3-series printer, or want a fully documented single-size nozzle. | View on Amazon (opens Amazon in a new tab) |
How we compared them
This is a research-based comparison. Every detail below comes from the two makers' store pages, listed in the sources, and printer fit comes from our compatibility records, which are built from those pages. We haven't printed with either nozzle, so nothing here is a measured result of ours. Where a maker describes its own product, such as "an ideal nozzle for all applications," we label it as the maker's claim.
Creality publishes far less than Micro Swiss for this kit. We searched Creality's store for the kit and found no other page with more detail, so where the table says "not published," we mean Creality's page doesn't give it. Neither maker publishes a wear test, a flow figure, or a temperature rating for these nozzles, so there's no test table on this page.
Side-by-side specs
| Micro Swiss CM2 MK8 Nozzle (Hardened Tip) | Creality High-end Hardened Steel Nozzle Kit | |
|---|---|---|
| What you get | One nozzle, 0.4 mm on this listing (SKU M2901-04) | A kit; Creality's page doesn't state the count or the sizes included |
| Body | Copper chromium zirconium, electroless nickel plated | Hardened steel (product name); no further detail |
| Tip | M2 hardened high-speed steel insert, electroless nickel plated | Not described separately |
| Hardness | "Heat-treated hardness: 68 HRC" | "More Wear-resistant and High Hardness"; no figure |
| Coating | "Nonstick nano WS2 coating," coefficient of friction 0.035 | None described |
| Thread | M6x1.0 | Not published |
| Thread length / overall length | 5 mm / 13 mm | Not published |
| Sizes offered | 0.4, 0.6, 0.8, and 1.0 mm, sold separately | "Various Size Options for More Creations"; sizes not listed |
| Maximum temperature | Not published | Not published; says "Handle High Temperature Filaments" |
| Wear warranty | "Limited lifetime warranty against wear" | Not stated for the kit; a store-wide badge on the page says "Up to 12-Month Warranty" |
| Made in | "Made in USA by Micro Swiss" | Not stated |
| Ender-3 V3 family | Not on Micro Swiss's list | Not on Creality's list |
| Printers in our records | Ender-3, Ender-3 V2, Ender-3 S1 | Ender-3, Ender-3 V2 |
Materials and hardness
The two nozzles are built differently, as far as their makers say.
- Micro Swiss CM2. Micro Swiss says the core "is made of high-temperature Copper Chromium Zirconium" with electroless nickel plating, and that "this special alloy retains its strength at much higher temperatures compared to a regular copper alloy." The tip "is made of M2 Hardened High Speed Steel and coated with a special nonstick nano coating," which it lists as WS2 with a coefficient of friction of 0.035. It gives a heat-treated hardness of 68 HRC. So only the tip is hardened steel. The body is a copper alloy.
- Creality kit. Creality's page names the kit "High-end Hardened Steel Nozzle Kit" and lists "More Wear-resistant and High Hardness," "Premium Materials Handle High Temperature Filaments," and "Corrosion Resistance for Longer Service Life." It gives no hardness figure, no alloy, and no coating, and it doesn't say whether the whole nozzle or only part of it is hardened steel.
Micro Swiss calls the CM2 "an ideal nozzle for all applications." That's the maker's claim. Neither maker publishes a wear test, so we can't say which lasts longer with abrasive filament. Micro Swiss backs its nozzle with a "limited lifetime warranty against wear." Creality's product page shows a store-wide "Up to 12-Month Warranty" badge, without saying what that means for this kit. Our guide to nozzles for abrasive filaments covers when a wear-resistant nozzle is worth it.
Thread, length, and sizes
Micro Swiss gives the dimensions you need to check a screw-in nozzle: an M6x1.0 thread, a 5 mm thread length, and a 13 mm overall length. It sells the CM2 MK8 in 0.4, 0.6, 0.8, and 1.0 mm orifices, as separate SKUs from M2901-04 to M2901-10.
Creality's page gives none of those dimensions. It says "Various Size Options for More Creations" but doesn't list which sizes are in the kit or how many nozzles it holds. The 8-piece count and the MK8 label in our catalog record come from the Amazon listing we link to, not from Creality's page, so check the listing for the sizes before you rely on a specific diameter. If you're choosing a size, our nozzle sizes guide explains the trade-offs.
Printer fit
Both makers publish long fit lists, and both cover the original Ender-3 and the Ender-3 V2.
- Micro Swiss lists Creality's Ender 2, Ender 3, Ender 3 V2, Ender 3 Pro, Ender 3 S1, Ender 3 Max, Ender 5, Ender 5 Plus, Ender 5 Pro, Ender 6, the CR-10 family, the CP-01, and the Sermoon D1, along with printers from Anet, Artillery, FLSUN, Geeetech, MakerBot, Sovol, Snapmaker, and others.
- Creality lists "Ender-3 Pro/Ender-3/Ender-3 V2/Ender-5/Ender-5 Pro/Ender-5 Plus/ Ender-3s/Ender-6/Ender-4/Ender-3 Max/Ender-2 Pro/Ender-2/CR-10S CR-10/CR-10 S5/CR-10 S4/CR-10Mini/CR-20/CR-20 Pro."
In our compatibility records, the Micro Swiss nozzle fits the Ender-3, Ender-3 V2, and Ender-3 S1, and the Creality kit fits the Ender-3 and Ender-3 V2. Creality's list includes "Ender-3s" but not the Ender-3 S1 by that name, so we don't claim the kit fits the S1. The other printers on both lists are named by their makers, but they aren't in our printer records, so we make no fit claim for them. Neither maker lists the Ender-3 V3, V3 SE, V3 KE, V3 Plus, or V4, so we don't claim either fits those printers.
Temperature
Neither maker publishes a maximum temperature for these nozzles. Creality says its kit can "Handle High Temperature Filaments" without a figure. Micro Swiss says its body alloy "retains its strength at much higher temperatures compared to a regular copper alloy," also without a figure. A nozzle doesn't raise your hotend's limit, so follow your printer maker's temperature limit for the hotend, heater, and thermistor you have.
What each maker says it's for
- Micro Swiss CM2. Micro Swiss calls it "an ideal nozzle for all applications," and pairs the hardened tip with a non-stick coating and a "limited lifetime warranty against wear."
- Creality kit. Creality sells it on wear resistance, high-temperature filaments, corrosion resistance, a range of sizes, and "Extensive Compatibility" across its older printers.
Micro Swiss CM2 MK8 Nozzle (Hardened Tip) (0.4 mm (Micro Swiss SKU M2901-04))
- Best for
- Original Ender-3 owners who want one wear-resistant nozzle with a copper-alloy body and a hardened steel tip.
- Skip this if
- Your printer uses a quick-swap or all-in-one hotend.
- Verified fit
- Creality Ender-3 (original); Creality Ender-3 V2; Creality Ender-3 S1 (stock configuration, per the manufacturer)
Specs, strengths, and limitations
- Interface
- MK8 nozzle, M6x1.0 thread, 5 mm thread length, 13 mm overall length
- Hotend design
- Screw-in nozzle: nickel-plated copper chromium zirconium body with M2 hardened high-speed steel insert and WS2 non-stick coating
- Wear-resistant
- Yes, per the manufacturer
- Does not fit
- Not listed by Micro Swiss for the Ender-3 V3 family, which uses a different nozzle system.
- Maker notes
- Micro Swiss fit list includes Creality Ender 3, Ender 3 V2, Ender 3 Pro, Ender 3 S1, Ender 3 Max, Ender 5 series, CR-10 series and many others. The original Ender-3, Ender 3 V2 and Ender 3 S1 have compatibility records. Micro Swiss states heat-treated hardness 68 HRC and a limited lifetime warranty against wear. Amazon model M2901 matches the Micro Swiss CM2 MK8 nozzle SKU family; the 0.4 mm variant is M2901-04. Micro Swiss does not state a maximum temperature on the product page, so none is recorded.
- Manufacturer states an M2 hardened high-speed steel insert, heat-treated to 68 HRC.
- Manufacturer states the copper chromium zirconium body keeps its strength at higher temperatures than regular copper alloy.
- Manufacturer offers a limited lifetime warranty against wear.
- Fits MK8-style hotends only, not Ender-3 V3-series quick-swap nozzles.
- No maximum temperature is published on the manufacturer page.
Creality High-end Hardened Steel Nozzle Kit (MK8) (8 pcs (Amazon model 3D-Hardened Steel Nozzle Kit); sizes not stated by Creality)
- Best for
- Original Ender-3 owners who want wear-resistant spare nozzles for occasional abrasive filaments.
- Skip this if
- You own an Ender-3 V3-series printer, or want a fully documented single-size nozzle.
- Verified fit
- Creality Ender-3 (original); Creality Ender-3 V2 (stock configuration, per the manufacturer)
Specs, strengths, and limitations
- Interface
- MK8 nozzle (per the Amazon listing); Creality's page does not state thread or length
- Hotend design
- Screw-in hardened steel nozzle
- Wear-resistant
- Yes, per the manufacturer
- Does not fit
- Not for the Ender-3 V3, V3 SE, V3 KE or V3 Plus: they are not on Creality's list for this kit.
- Maker notes
- Creality's product page lists Ender-3 Pro, Ender-3, Ender-3 V2, Ender-5, Ender-5 Pro, Ender-5 Plus, Ender-3s, Ender-6, Ender-4, Ender-3 Max, Ender-2 Pro, Ender-2, CR-10S, CR-10, CR-10 S5, CR-10 S4, CR-10 Mini, CR-20 and CR-20 Pro. Only the original Ender-3 and the Ender-3 V2 are in the printers list. Creality's page says 'More Wear-resistant and High Hardness' and 'Handle High Temperature Filaments' but gives no temperature. The Amazon listing mentions a 450 °C 'copper alloy nozzle', which conflicts with the hardened steel title. No maxTempC recorded. Pack count (8 pcs) comes from the Amazon listing. Creality's page does not list the sizes included.
- Manufacturer describes the nozzles as more wear-resistant and of high hardness.
- Manufacturer names the original Ender-3 among compatible models.
- Creality's page gives no thread, length, temperature or size breakdown.
- Amazon listing text conflicts with itself on material (hardened steel title, copper alloy in one bullet).
Verdict: which should you buy?
Choose the Micro Swiss CM2 MK8 if…
- You want a nozzle with a published thread, length, hardness, and coating.
- You own an Ender-3 S1, which Micro Swiss names and Creality's kit list doesn't.
- You want a maker's limited lifetime warranty against wear, and one nozzle in a size you choose.
Choose the Creality Hardened Steel Nozzle Kit if…
- You own an original Ender-3 or Ender-3 V2 and want several hardened spares from your printer's own maker.
- You're happy to check the sizes and count on the listing, since Creality's page doesn't give them.
- You don't need a published hardness figure or thread specification.
Safety and limits
How this page was checked
Every material, dimension, size, warranty, and fit detail above comes from Micro Swiss's and Creality's store pages in the sources section, retrieved on 2026-10-10, and from our compatibility records built from them. We haven't printed with either nozzle for this page, so nothing here is a measured result of ours. Creality's page shows five feature headings and a compatibility list. Its description text holds nothing more, and we found no other Creality page with this kit's specifications. The 8-piece count and the MK8 label in our catalog come from the Amazon listing we link to, not from Creality, so check the listing for the count and sizes. Read more in our editorial standards and affiliate disclosure.
Nozzles: what to check before you buy ↗Sources
- Microswiss CM2 - MK8 Nozzle Hardened Tip, Micro Swiss
- High-end Hardened Steel Nozzle Kit, Creality
This page is research-based: we have not tested the products or methods ourselves. It draws on the manufacturer documentation and sources listed. Exact settings and fit always defer to your printer and filament makers.
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