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變型千分尺
數顯係統（tǒng）與133-XX-450電子（zǐ）外徑千分尺相同。
絲杆直進式。
盤頭測量麵適用於測量齒輪、紙厚等。
電子顯示、刻度顯示。
棘輪測力。
| 貨號 | 測量範（fàn）圍 | 精度 |
|---|---|---|
| 290-21-450 | 0-25mm | 0.004mm |
| 290-22-450 | 25-50mm | 0.004mm |
| 290-23-450 | 50-75mm | 0.005mm |
| 290-24-450 | 75-100mm | 0.005mm |
| 290-25-450 | 100-125mm | 0.006mm |
| 290-26-450 | 125-150mm | 0.006mm |
| 290-27-450 | 150-175mm | 0.007mm |
| 290-28-450 | 175-200mm | 0.007mm |
| 測量範圍 | A | B | L | D | S | d |
|---|---|---|---|---|---|---|
| 0-25mm | 8mm | 32mm | 43mm | Φ20mm | 0.7mm | Φ8mm |
| 25-50mm | 8mm | 44.5mm | 68mm | Φ20mm | 0.7mm | Φ8mm |
| 50-75mm | 8mm | 57mm | 93mm | Φ20mm | 0.7mm | Φ8mm |
| 75-100mm | 10mm | 70mm | 118.5mm | Φ20mm | 0.7mm | Φ8mm |
| 100-125mm | 10mm | 82mm | 144mm | Φ30mm | 0.9mm | Φ11.5mm |
| 125-150mm | 12mm | 94.5mm | 169.5mm | Φ30mm | 0.9mm | Φ11.5mm |
| 150-175mm | 12mm | 107mm | 194.8mm | Φ30mm | 0.9mm | Φ11.5mm |
| 175-200mm | 12mm | 120mm | 220mm | Φ30mm | 0.9mm | Φ11.5mm |
| 200mm-300mm為五鍵電子公法（fǎ）線 | ||||||
| 200-225mm | 15.5mm | 129.5mm | 238mm | Φ30mm | 0.9mm | Φ11.5mm |
| 225-250mm | 16mm | 142mm | 263mm | Φ30mm | 0.9mm | Φ11.5mm |
| 250-275mm | 16mm | 155mm | 288mm | Φ30mm | 0.9mm | Φ11.5mm |
| 275-300mm | 16.5mm | 167.5mm | 313mm | Φ30mm | 0.9mm | Φ11.5mm |
