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變型千分尺
IP54防護等（děng）級。
數顯係統與132-XX-040電子外徑千分尺相同。
棘輪套測力。
| 貨號 | 測量範圍 | 精度 | D | d |
|---|---|---|---|---|
| 231-01-040 | 0-25mm | 0.004mm | R10mm | Φ8mm |
| 231-02-040 | 25-50mm | 0.004mm | R10mm | Φ8mm |
| 231-03-040 | 50-75mm | 0.005mm | R10mm | Φ8mm |
| 231-04-040 | 75-100mm | 0.005mm | R10mm | Φ8mm |
| 231-05-040 | 100-125mm | 0.006mm | R15mm | Φ12mm |
| 231-06-040 | 125-150mm | 0.006mm | R15mm | Φ12mm |
| 231-07-040 | 150-175mm | 0.007mm | R15mm | Φ12mm |
| 231-08-040 | 175-200mm | 0.007mm | R15mm | Φ12mm |
