Table 1. Typical parameters for pulling ~3-μm needle tips from 100 × 365-μm fused-silica capillary
| Heat | Filament | Velocity | Delay | Pull | |
| 1 | 320 | 0 | 40 | 200 | 0 |
| 2 | 310 | 0 | 30 | 200 | 0 |
| 3 | 300 | 0 | 25 | 200 | 0 |
| 4 | 290 | 0 | 20 | 200 | 0 |
| These values will differ slightly from instrument to instrument. For a very useful section on the construction of capillary needles, see the Sutter Instrument P-2000 manual. | |||||








