// Operations · key T
Thread mill
Cuts an internal or external thread with a thread mill following a helix.
Use it for: Metric (M) and inch (UNC/UNF) threads in metal or plastic, any size the tool fits.
Tool: A single-profile thread mill.
Settings
| Setting | What it does | Default |
|---|---|---|
| Thread | The thread: M8, 1/4-20 UNC… (or a custom pitch). | M8 |
| Internal / external | A thread in a hole, or on a pin. | Internal |
| Hand | Right- or left-hand thread. | Right |
| Thread length | How deep the thread goes. | 12 mm (or the stock) |
| Radial passes | Cut the thread depth in several passes in hard materials. | 1 |
Every operation also has: Tool, Include in G-code, Own safe heights, Start depth, Coolant — see Heights. Hover the (i) next to a setting in the app for the same explanations.
Tips
- Drill the hole first, to the tap drill size of the thread (M8 → 6.8 mm).