Starting price
฿1,800
/ mm
Mitutoyo 530-312 Vernier Caliper 6" / 150 mm
Model: 530-312
The Mitutoyo 530-312 is a full-stainless-steel 150 mm vernier caliper widely used in Thai metrology labs and production lines. It measures OD, ID, depth, and step dimensions with 0.05 mm resolution and ±0.02 mm accuracy. The stainless construction resists corrosion and maintains calibration stability in coolant-exposed environments. Ideal for daily QC checks, incoming material inspection, and first-article measurement in automotive, electronics, and plastics industries.
Meas. Range
0–150 mm
Accuracy
±0.02 mm
Specifications
| Accuracy | ±0.02 mm |
| Material | Full stainless steel |
| Graduation | Metric (mm) |
| Resolution | 0.05 mm |
| Measuring Range | 0 – 150 mm |
| Measurement Types | OD, ID, depth, step |
Use Cases
In-process dimensional checks on production lines, pipe and fitting diameter measurement, incoming material inspection, and mold groove depth measurement.
Frequently Asked Questions
How often should a vernier caliper be calibrated?+
At least annually per ISO 17025 guidelines, or every 6 months in high-volume production environments, to ensure drift stays within the ±0.02 mm tolerance.
Is ±0.02 mm accuracy adequate for general QC?+
Yes for plastics, general metal parts, and assembly checks. For tighter tolerances below ±0.01 mm, use a micrometer or CMM instead.
How does this differ from a digital caliper?+
Vernier calipers read directly from etched scales with no battery needed and better resistance to oils and fluids, but require skill to read quickly. Digital calipers are faster but need battery maintenance and are less fluid-resistant.
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