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Micrometer Drums (Heads):
| 17320 |
Micrometer drum, 0-2in range (2in diameter), color-coded
for plus and minus direction, direct-reading to 0.0001in. |
| 17321 |
Micrometer drum, 0-1in range, (2-inch diameter),
color-coded for plus and minus direction, direct reading to 0.0001in. |
| 17324 |
Micrometer drum, 0-2in range (3/4in diameter),
direct-reading to 0.001in. |
| 17323 |
Micrometer drum, 0-1in range (3/4in diameter),
vernier-reading to 0.0001in |
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