• The tools are for comparing and measuring the diameters of extremely small holes or the widths of narrow grooves that are hard to measure with the other measuring instruments.
• A spring-loaded plunger expands within a bore (or groove) and is locked in place allowing diameter measurements (or width) with an outside micrometer after extraction.
| แบรนด์สินค้า | MITUTOYO |
|---|---|
| Digital/Analog | Analog |
| Inch-Metric | Metric |
| Order No. | 155-905 (TGST/8-150) |
| Range | 8 - 150 mm |
| Gages included | 155-127 (8 - 12.7mm) / 155-128 (12.7 - 19mm) / 155-129 (19 - 32mm) / 155-130 (32 - 54mm) / 155-131 (54 - 90mm) / 155-132(90 - 150mm) |

| Range (mm) | L | øD | ød1 | ød2 |
| 8 - 12.7 | 110 | 5 | 4 | 3 |
| 12.7 - 19 | 5.5 | 5 | 3.5 | |
| 19 - 32 | ||||
| 32 - 54 | 150 | 8 | 7.5 | 6 |
| 54 - 90 | ||||
| 90 - 150 |