Gear Tooth Micrometer Code 3291
- Measure over-pin diameter of gears
- Graduation 0.01mm
- Ratchet stop
- Optional accessary: ball tips (code 7391, next page)
- Supplied with setting standards (except 0-25mm)
| Code |
Range |
Micrometer head accuracy |
Ball tips accuracy |
L |
b |
| 3291-25 |
0-25mm |
4μm |
8μm |
67 |
38 |
| 3291-50 |
25-50mm |
4μm |
8μm |
92.4 |
50 |
| 3291-75 |
50-75mm |
5μm |
10μm |
117.6 |
62 |
| 3291-100 |
75-100mm |
5μm |
10μm |
143 |
70 |
| 3291-125 |
100-125mm |
6μm |
15μm |
168.2 |
82 |
| 3291-150 |
125-150mm |
6μm |
15μm |
192 |
94.5 |
| 3291-175 |
150-175mm |
7μm |
15μm |
217 |
107 |
