INSIZE 3127 Digital Two-Point Internal Micrometer | 2–6mm
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INSIZE 3127 Digital Two-Point Internal Micrometer
The INSIZE 3127 Digital Two-Point Internal Micrometer is a precision measuring instrument designed for accurate measurement of small internal diameters and bores. The two-point measuring design provides direct dimensional measurement in confined internal features where conventional outside micrometers and calipers cannot be used.
CRB Supply offers the 2–6 mm range of the INSIZE 3127 series, including models covering individual measurement ranges from 2 mm through 6 mm. These compact digital internal micrometers provide 0.001 mm / 0.00005" resolution and 6 µm accuracy, making them well suited for precision inspection, machining, and quality-control applications.
Key Features
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Precision two-point internal diameter measurement
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Designed for small internal bores and openings
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Digital readout for quick and easy measurement
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0.001 mm / 0.00005" resolution
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6 µm accuracy across the 2–6 mm models
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Metric/inch measurement
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Zero/set function
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Compact design for measuring small internal features
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Suitable for precision machining and inspection applications
Model Specifications
| Model | Measuring Range | Accuracy | Resolution |
|---|---|---|---|
| 3127-2 | 2–2.5 mm / 0.08–0.10" | 6 µm | 0.001 mm / 0.00005" |
| 3127-3 | 2.5–3 mm / 0.10–0.12" | 6 µm | 0.001 mm / 0.00005" |
| 3127-4 | 3–4 mm / 0.12–0.16" | 6 µm | 0.001 mm / 0.00005" |
| 3127-5 | 4–5 mm / 0.16–0.20" | 6 µm | 0.001 mm / 0.00005" |
| 3127-6 | 5–6 mm / 0.20–0.24" | 6 µm | 0.001 mm / 0.00005" |
Applications
The INSIZE 3127 is designed for precision measurement of small internal features, including:
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Small precision bores
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Internal diameters
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Bushings and sleeves
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Machined holes
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Precision components
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Tooling components
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Small mechanical parts
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Manufacturing and quality-control inspection
Precision Small-Bore Measurement
The 3127 provides a dedicated solution for measuring internal diameters that are too small for many conventional internal measuring instruments. The two-point measuring arrangement contacts the internal surface at two points to provide a direct measurement of the bore diameter.
With individual models covering 2–2.5 mm through 5–6 mm, users can select the appropriate micrometer according to the internal diameter being inspected.
Digital Measurement
The digital display provides high-resolution measurement readings in metric or inch units. With 0.001 mm / 0.00005" resolution, the 3127 series is designed for detailed dimensional inspection in precision manufacturing and metrology environments.
Models Available from CRB Supply
3127-2 — 2–2.5 mm / 0.08–0.10"
3127-3 — 2.5–3 mm / 0.10–0.12"
3127-4 — 3–4 mm / 0.12–0.16"
3127-5 — 4–5 mm / 0.16–0.20"
3127-6 — 5–6 mm / 0.20–0.24"
Manufacturer: INSIZE
Product Series: 3127 Digital Two-Point/Three-Point Internal Micrometers
Product Type: Digital Two-Point Internal Micrometer
Available Range: 2–6 mm
Accuracy: 6 µm
Resolution: 0.001 mm / 0.00005"