High-precision spindle collet. The machine will come with a 1/8 inch (3.175mm) collet by default, which is for using 1/8 inch milling bits (the most suitable one). But you can use other models for mil…
Source: https://www.makera.com/products/spindle-collet

| Variant | Price | Availability |
|---|---|---|
| 4mm | 39.90 USD | In Stock |
| 6mm | 39.90 USD | In Stock |
| 1/4 inch (6.35mm) | 39.90 USD | In Stock |
| 1/8 inch (3.175mm) | 39.90 USD | In Stock |