| 测量范围 | L | B | C |
|---|---|---|---|
| 0-0.6" | 22mm | 8mm | 55mm |
| 0-1" | 32mm | 8mm | 55mm |
| 0-2" | 57mm | 12mm | 105mm |

| 测量范围 | 精度 | 测量面 | 代码号 |
|---|---|---|---|
| 0-.6" | ±.0001" | Flat | 158-51-1 |
| 0-1" | ±.0002" | Flat | 158-52-1 |
| 1-2" | ±.0002" | Flat | 158-53-1 |
| 0-.6" | ±.0001" | Spherical | 158-51-3 |
| 0-1" | ±.0002" | Spherical | 158-52-3 |
| 0-2" | ±.0002" | Spherical | 158-53-3 |