外径千分尺:
◆ 墨绿色的光滑烤漆架
◆ 测量面带有硬质合金头
◆ 光滑的镀铬面上有清晰的刻度
◆ 带有锁紧夹钳
◆ 棘轮锁定装置或摩擦套管可的重复
◆ 带有一个基准杆（不包括25mm型）
外径千分尺公制型 带有棘轮锁定装置
| 测量范围 | 分度值 | |
| 0-25mm | 0.01mm | &plun;2um |
| 0-25mm | 0.001mm | &plun;2um |
| 25-50mm | 0.01mm | &plun;2um |
| 25-50mm | 0.001mm | &plun;2um |
| 50-75mm | 0.01mm | &plun;2um |
| 75-100mm | 0.01mm | &plun;3um |
| 100-125mm | 0.01mm | &plun;3um |
| 125-150mm | 0.01mm | &plun;3um |
| 150-175mm | 0.01mm | &plun;4um |
| 175-200mm | 0.01mm | &plun;4um |
| 200-225mm | 0.01mm | &plun;4um |
| 225-250mm | 0.01mm | &plun;5um |
| 250-275mm | 0.01mm | &plun;5um |
| 275-300mm | 0.01mm | &plun;5um |
| 300-325mm | 0.01mm | &plun;6um |
| 325-350mm | 0.01mm | &plun;6um |
| 350-375mm | 0.01mm | &plun;6um |
| 375-400mm | 0.01mm | &plun;7um |
| 400-425mm | 0.01mm | &plun;7um |
| 425-450mm | 0.01mm | &plun;7um |
| 450-475mm | 0.01mm | &plun;8um |
| 475-500mm | 0.01mm | &plun;8um |
