- 用於對千分尺測量面的平行度和平面度進行檢測。
- 每組包括4 種尺寸，以便於測量千分尺測微螺桿各角度位置的平行度。
157-903 |
 |
規格:
| Metric | ||||||
| Order No. | Range of micrometer to be checked (mm) | Sizes of parallels included in set (mm) | Diameter | Flatness (µm) | Parallelism (µm) | Remarks (mm) |
| 157-903 | 0-25 | 12.00, 12.12, 12.25, 12.37 | ø30 | 0.1 | 0.2 | For 25 |
| 157-904 | 25-50 | 25.00, 25.12, 25.25, 25.37 | For 50 | |||
| Inch | ||||||
| Order No. | Range of micrometer to be checked (in) | Sizes of parallels included in set (in) | Diameter | Flatness (µm) | Parallelism (µm) | Remarks (mm) |
| 157-901 | 0-1 | 0.5000, 0.5062, 0.5125, 0.5187 | ø30 | 0.1 | 0.2 | For 25 |
| 157-902 | 1-2 | 1.0000, 1.0062, 1.0125, 1.0187 | For 50 | |||
