Mitutoyo 329-250-30 | Digital Depth Micrometer | 0-150 mm, 0.001 mm
Part No. 329-250-30 | Range 0–150 mm | Resolution 0.001 mm | Accuracy ±0.003 mm (±3 µm)
Product Overview
The Mitutoyo 329-250-30 digital depth micrometer provides digital depth measurements across a 0–150 mm range. It offers 0.001 mm resolution and published accuracy of ±0.003 mm (±3 µm), making it suitable for precision inspection of slots, steps, shoulders and blind holes.
The micrometer uses interchangeable measuring rods and includes six rods with lapped measuring ends to cover the specified range. A measuring rod clamp secures the selected rod, while the ratchet stop helps maintain consistent measuring force during repeated measurements.
The 101.6 mm × 16 mm base provides a reference surface for positioning the instrument over the feature being measured. The digital display makes readings straightforward to record, while SPC data output allows compatible measurement data to be transferred to a data-collection system.
The complete set is supplied in a fitted plastic case to keep the micrometer and interchangeable rods together between inspection tasks.
For a different measuring range and unit configuration, see the Mitutoyo 329-350-30 Digital Depth Micrometer with a 0–6" range and six rods.
Key Benefits
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Digital readout with 0.001 mm resolution.
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±0.003 mm (±3 µm) published accuracy.
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Six interchangeable rods with lapped measuring ends.
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0–150 mm measuring range.
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SPC data output for compatible data-collection systems.
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Measuring rod clamp secures the selected rod.
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Ratchet stop helps maintain consistent measuring force.
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101.6 mm × 16 mm base for stable positioning.
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Supplied in a fitted plastic case.
For pricing and availability, call +966 569 289 544 for a quote on the Mitutoyo 329-250-30.
Who This Product Is Best For
The Mitutoyo 329-250-30 is suitable for:
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Quality control teams requiring fast digital depth readings.
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Machine shops and toolrooms inspecting slots, steps and blind holes.
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Metrology laboratories documenting precision depth measurements.
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Inspection departments handling repeated depth checks.
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Production environments where digital readings and SPC data collection are useful.
How to Use
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Select the measuring rod appropriate for the depth being checked and fit it to the micrometer head.
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Place the base flat against the reference surface surrounding the feature.
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Operate the thimble until the measuring rod contacts the bottom of the feature.
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Use the ratchet stop to help maintain consistent measuring force.
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Read the measurement on the digital display and record the result.
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Where required, transfer the reading through the SPC data output to a compatible data-collection system.
Frequently Asked Questions
What does the Mitutoyo 329-250-30 measure?
It measures depth using interchangeable measuring rods. It is designed for checking features such as slots, steps, shoulders and blind holes.
What is the range of the 329-250-30?
The measuring range is 0–150 mm, with 0.001 mm resolution and published accuracy of ±0.003 mm (±3 µm).
How many rods are included?
The 329-250-30 includes six interchangeable measuring rods with lapped measuring ends.
Is the 329-250-30 analog or digital?
It is a digital depth micrometer, with the measurement shown on a digital display.
What is the difference between the 329-250-30 and 329-350-30?
The 329-250-30 is specified for a 0–150 mm range. The 329-350-30 is an inch/metric model with a 0–6" range and six rods. The appropriate model depends on the measuring range and units required for the application.
Does the 329-250-30 have SPC output?
Yes. The supplied specifications list SPC data output, allowing compatible measurement data to be transferred to a data-collection system.
What is a depth micrometer used for?
A depth micrometer is used to measure the depth of slots, steps, shoulders, recesses and blind holes. The base rests on a reference surface while the measuring rod extends into the feature.
How much does the Mitutoyo 329-250-30 cost?
Pricing is available on request. Call +966 569 289 544 or use the quote form on the product page to request current pricing and availability.
