Mitutoyo 2109A-10 Dial Indicator 1mm 0.001mm
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The Mitutoyo Series 2 standard type dial indicator reads in 0.001mm steps. Toolrooms, quality control teams and machinists use it for fine comparison measurement, where a coarser dial is too rough. It uses jewelled bearings for excellent indication sensitivity and durability, and it has a 57mm bezel. The case is oil- and water-tight, with quenched hardened stainless steel, a carbide contact point and a grand gear made of wear- and deformation-resistant material. An anti-reflective, hard surface coating improves scale visibility and resists scratches and chemicals.
Range is how far the plunger can travel, and the figure in brackets is how far it moves for one turn of the pointer. Graduation is the smallest step on the dial. Error is how far a reading can be out. To choose, take the 2109A-10 for 1mm of travel and the finest error figures, or the 2118A-10 for 5mm of travel. Both read to 0.001mm.
Where this product is used
- Fine comparison measurement against a master or gauge block stack
- Toolroom and quality control inspection
- Setting up work where 0.001mm steps matter
Features
- 0.001mm graduation with 0.2mm per revolution
- Range of 1mm (2109A-10) or 5mm (2118A-10)
- Jewelled bearings for indication sensitivity and durability
- Oil- and water-tight case with a carbide contact point
- Anti-reflective, hard surface coating for clear scale reading
- 57mm bezel, lug back, 8mm stem
- Measuring force of 1.5 N or less
Key specifications
| Specification | Detail |
|---|---|
| Brand | Mitutoyo |
| Series | 2 standard type, 0.001mm |
| Graduation | 0.001mm |
| Range | 1mm (2109A-10), 5mm (2118A-10), 0.2mm per revolution |
| Error over 1/10 rev, 1/2 rev, 1 rev, full range | 2, 3, 4, 5 µm (2109A-10), 3.5, 5, 6, 10 µm (2118A-10) |
| Hysteresis | 2 µm (2109A-10), 3 µm (2118A-10) |
| Repeatability | 0.5 µm (2109A-10), 1 µm (2118A-10) |
| Measuring force | 1.5 N or less |
| Mass | 148g (2109A-10), 146g (2118A-10), lug back |
| Stem diameter | 8mm |
Supplied with
- One dial indicator per option
Choosing the right option
| Option | Part number | SKU |
|---|---|---|
| 1 (0.2)mm | 2109A-10 | A0211426 |
| 5 (0.2)mm | 2118A-10 | A0211427 |
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Mitutoyo Dial Indicator Series 2 - Standard Type, 0.001mm Graduation: 1 (0.2)mm
SKU: A0211426 | Model: 2109A-10
With 1mm of travel, the 2109A-10 reads in 0.001mm steps, with the pointer turning once per 0.2mm. Its maximum permissible error over the full range is 5 µm, with 2 µm hysteresis and 0.5 µm repeatability. It uses jewelled bearings, has a lug back and weighs 148g.