Both CM2 parts have a hardened tip. Compare the 5 mm and 7.5 mm thread lengths against their documented MK8 and V6 formats before considering 0.6 versus 0.4 mm.
Fit guide
How to tell MK8, V6 and Volcano-style nozzles apart
An M6 thread and a 0.4 mm opening can appear on more than one nozzle format. Start with the hotend model, then compare the manufacturer’s drawing. On the specific Micro Swiss parts below, the thread can share a pitch while the threaded sections have different lengths.
What to check
- For the Micro Swiss CM2 MK8, the maker lists an M6 × 1.0 thread, a 5 mm threaded section and a 13 mm overall length.
- The Micro Swiss CM2 RepRap V6 also has an M6 × 1.0 thread and a 13 mm overall length, but the listed threaded section is 7.5 mm.
- On the plated Micro Swiss Volcano-style line for 1.75 mm filament, the listed thread is 16 mm long and the body is 21 mm overall. Confirm the hotend first, then compare an opening with your slicer profile.
Compare products
Choose the V6 single nozzle or the Volcano-style multi-opening pack according to the installed block, even if both options include 0.4 mm.
Questions about this choice
Can I identify the nozzle format from the thread diameter alone?
Use the model and dimensional drawing together. In these examples three parts use the same M6 × 1.0 thread specification, while their threaded sections differ.
Does 1.75 mm mean the same thing as 0.6 mm?
A 1.75 mm specification can identify the filament the hotend takes. The 0.6 mm figure describes the nozzle opening. Use both when matching your machine and print profile.