
• This is a screw thread micrometer with changeable anvil and spindle tips. It enables direct reading of screw pitch diameter. Both analog and digital types are available.
• Interchangeable anvil and spindle tips are optional. Select the right model to meet the specifications of your screw thread.
• Equipped with Ratchet Stop for constant measuring force.
• Supplied with a setting standard for adjusting zero point for metric (unified) 60º threads.
With SPC data output
SPECIFICATIONS
Metric
| Order No. | Range (mm) |
Resolution (mm) |
Spindle feed error (μm) |
| With SPC data output | |||
| 326-251-30 | 0 - 25 | 0.001 | 3 |
| 326-252-30 | 25 - 50 | ||
| 326-253-30 | 50 - 75 | ||
| 326-254-30 | 75 - 100 | ||
Inch / Metric
| Order No. | Range (in) |
Resolution | Spindle feed error (in) |
| With SPC data output | |||
| 326-351-30 | 0 - 1 | 0.00005 in/ 0.001 mm |
0.00015 |
| 326-352-30 | 1 - 2 | ||
| 326-353-30 | 2 - 3 | ||
| 326-354-30 | 3 - 4 | ||
• Power source: SR44 battery (1 pc.), 938882 included as standard (for operational checks)
• Battery life: Approx. 2.4 years under normal use
• Position detection method: Electromagnetic rotary sensor
• Standard Accessories: Spanner (301336), 1 pc.
| แบรนด์สินค้า | MITUTOYO |
|---|---|
| Digital/Analog | Digital |

| Range (mm) | b | d |
| 0 - 25 | 25 | 39 |
| 25 - 50 | 32 | 64 |
| 50 - 75 | 45 | 89.5 |
| 75 - 100 | 65 | 115.1 |
| 100 - 125 | 79 | 140.1 |
| 125 - 150 | 93 | 165.1 |
| 150 - 175 | 105 | 190 |
| 175 - 200 | 118 | 214 |
| 200 - 225 | 131 | 240 |
| 225 - 250 | 144 | 265 |
| 250 - 275 | 156 | 290 |
| 275 - 300 | 169 | 314 |