| Code | Accuracy | Remark |
|---|---|---|
| 2438-175A | 5μm | body(included base 2438-BASE1) |
| 2438-325A | 5μm | body(included base 2438-BASE1) |
| 2438-BASE1 | 5μm | measuring groove pitch (included) |
| 2438-BASE2 | 5μm | measuring groove width and depth (optional) |
| 2438-BASE3 | 5μm | measuring groove width and depth (optional) |




