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Consultation Hotline：134-0567-8046
Email：shojll@163.com
Technical parameters:
| Thread | Name | Ball head diameter (mm) | Total length (mm) |
| M4 | Ruby tungsten steel measuring needle | 1.0/1.5 | 20L/30L |
| 2.0/3.0/4.0/5.0/6.0 | 20L/30L/40L/50L | ||
| M4 | Tungsten steel cylindrical needle | 0.5/0.7 | 20L |
| zero point eight | 20L/30L | ||
| 1.0/1.5 | 20L/30L/40L | ||
| two | 50L | ||
| M4 | Ruby ceramic rod measuring needle | four | 20L/30L/40L/50L |
| 5.0/6.0 | 50L/75L/100L/150L | ||
| M4 | Ceramic/stainless steel extension rod | 20L/30L/50L/100L |
For more needle models, please refer to the HAIDENA needle catalog, which supports non-standard customization.