Table 1. Needle Size.
| needle number | outer diameter (mm) | inner diameter (mm) |
|---|---|---|
| 1 | 0.9 | 0.6 |
| 2 | 0.71 | 0.41 |
| 3 | 0.55 | 0.3 |
| 4 | 0.41 | 0.19 |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.