Product Description: Digital Outside Micrometer 0-25mm, INSIZE – 3109-25A

The INSIZE Digital Outside Micrometer 0-25mm – Model 3109-25A is a precision digital measuring instrument designed for accurate outside dimensional measurement of small components, parts, shafts, materials, and manufactured products. With a 0–25 mm / 0–1″ measuring range, 0.001 mm / 0.00005″ resolution, and ±2 μm accuracy, this digital outside micrometer is suitable for professional dimensional inspection, engineering, manufacturing, machining, workshop, production, and quality-control applications.

The INSIZE 3109-25A belongs to the Digital Outside Micrometers (Basic Type, Without Data Output) series. It is designed for users who require precise digital measurement without the need for an external data-output interface. The instrument provides a clear digital measurement reading and allows convenient switching between metric and inch measurement units.

One of the main advantages of the 3109-25A Digital Outside Micrometer is its fine 0.001 mm / 0.00005″ resolution. This high-resolution measurement capability allows users to observe very small dimensional variations during inspection. The specified ±2 μm accuracy makes it suitable for precision measurement tasks where reliable dimensional readings are important.

The micrometer features carbide measuring faces, which are designed for durable and consistent contact with the workpiece. It also incorporates a friction thimble, helping provide controlled operation during measurement. The manufacturer specifies that the 3109-25A is supplied with a spherical anvil, providing the intended measuring configuration for the instrument.

The instrument includes convenient button functions such as On/Off, Set, mm/inch, and ABS/INC. The ABS/INC functionality allows users to switch between absolute and relative measurement modes, while the Set function can be used for establishing the required initial reading. According to the operating instructions, for the 0–25 mm / 0–1″ model, the measuring faces can be closed and the initial zero reading can be set.

The 3109-25A also features automatic power-off, helping reduce unnecessary battery consumption when the instrument is not being used. The product is powered by a battery and is designed for convenient portable measurement in workshops, production areas, inspection stations, and other professional environments.

Key Specifications

• Product Name: Digital Outside Micrometer
• Brand: INSIZE
• Model: 3109-25A
• Product Type: Digital Outside Micrometer
• Measuring Range: 0–25 mm / 0–1″
• Resolution: 0.001 mm / 0.00005″
• Accuracy: ±2 μm
• Data Output: No data output
• Measuring Faces: Carbide
• Thimble Type: Friction thimble
• Anvil: Spherical anvil
• Button Functions: On/Off, Set, mm/inch, ABS/INC
• Power: Battery powered
• Power Saving: Automatic power-off
• Length (L): 32 mm
• Manufacturer Series: 3109
• Number of Items: 1

The official INSIZE specification lists the 3109-25A with a 0–25 mm / 0–1″ range, ±2 μm accuracy, 0.001 mm / 0.00005″ resolution, and 32 mm L dimension.

Key Features

• 0–25 mm Measuring Range: Suitable for measuring the outside dimensions of compatible small components and parts.
• High 0.001 mm Resolution: Provides detailed digital measurement readings.
• ±2 μm Accuracy: Designed for precision dimensional inspection.
• Metric/Inch Conversion: Allows convenient switching between mm and inch measurement units.
• ABS/INC Function: Supports absolute and relative measurement modes.
• Set Function: Allows the user to establish an initial measurement reference.
• Carbide Measuring Faces: Designed for durable measuring contact.
• Friction Thimble: Provides controlled operation during measurement.
• Spherical Anvil: Supplied as part of the specified measuring configuration.
• No Data Output: This model is designed without a data-output interface.
• Automatic Power-Off: Helps conserve battery power.
• Digital Display: Provides a clear and convenient measurement reading.
• Compact Precision Instrument: Suitable for workshop, manufacturing, engineering, and inspection environments.

Typical Applications

The INSIZE Digital Outside Micrometer 3109-25A can be used in a variety of professional measurement and inspection applications, including:

• Precision outside diameter measurement
• Shaft diameter measurement
• Small component inspection
• Machined part inspection
• Engineering measurement
• Manufacturing quality control
• Workshop measurement
• Production-line inspection
• Dimensional quality control
• Mechanical component inspection
• Industrial inspection
• Incoming material inspection
• Research and technical measurement
• Laboratory and educational applications

The 0–25 mm range makes this model particularly suitable for smaller workpieces where a conventional ruler or basic measuring instrument may not provide the required resolution.

How to Use the INSIZE 3109-25A Digital Outside Micrometer

Before measurement, the measuring faces and the surface of the workpiece should be cleaned with a clean, soft cloth. The zero position should also be checked before taking measurements.

For the 0–25 mm / 0–1″ model, the measuring faces can be brought together and the initial zero reading can be established using the Set function. The instrument can then be switched between absolute and relative measurement modes as required.

After positioning the workpiece between the measuring faces, the friction thimble can be operated to obtain the appropriate measuring contact. The digital display then provides the measurement reading. Users can select either metric or inch units depending on the measurement requirement.

Frequently Asked Questions (FAQ)

Q1: What is the INSIZE 3109-25A Digital Outside Micrometer used for?
The INSIZE 3109-25A is designed for precision outside dimensional measurement of suitable small components, parts, shafts, and manufactured products.

Q2: What is the measuring range of the 3109-25A?
The measuring range is 0–25 mm / 0–1″.

Q3: What is the resolution of this digital micrometer?
The resolution is 0.001 mm / 0.00005″.

Q4: What is the accuracy of the INSIZE 3109-25A?
The specified accuracy is ±2 μm.

Q5: Does the 3109-25A have data output?
No. The 3109-25A is a basic type digital outside micrometer without data output.

Q6: What type of measuring faces does it have?
The micrometer features carbide measuring faces.

Q7: What type of thimble does the micrometer use?
The 3109-25A uses a friction thimble.

Q8: What type of anvil is supplied with the instrument?
The instrument is supplied with a spherical anvil.

Q9: Can the measurement unit be changed between mm and inch?
Yes. The instrument provides an mm/inch conversion function.

Q10: What does ABS/INC mean on the micrometer?
ABS refers to the absolute measuring mode, while INC refers to the relative or incremental measuring mode. The instrument allows conversion between these modes using the designated button.

Q11: Does the INSIZE 3109-25A have automatic power-off?
Yes. The instrument includes an automatic power-off function to help conserve battery power.

Q12: What is the model number of this digital outside micrometer?
The model number is 3109-25A.

Q13: What is the length dimension listed for the 3109-25A?
The manufacturer specification lists the L dimension as 32 mm for the 0–25 mm model.

Q14: Is the INSIZE 3109-25A suitable for industrial quality control?
Yes. Its precision measurement capability makes it suitable for dimensional inspection, manufacturing, machining, engineering, workshop, and quality-control applications where its specified range and accuracy meet the measurement requirement.

Where to Buy INSIZE 3109-25A Digital Outside Micrometer in Bangladesh

The INSIZE Digital Outside Micrometer 0-25mm – 3109-25A is a precision measuring instrument suitable for professional measurement and inspection requirements in Bangladesh. It can be used by engineering workshops, manufacturing industries, machine shops, production facilities, laboratories, educational institutions, research organizations, and quality-control departments.

Contact

M/S Bright Scientific Co.
Phone: +880 1711285976

Conclusion

The INSIZE Digital Outside Micrometer 0-25mm – Model 3109-25A is a precision digital measuring instrument designed for accurate outside dimensional measurement. With its 0–25 mm / 0–1″ range, 0.001 mm / 0.00005″ resolution, and ±2 μm accuracy, it is suitable for detailed measurement and dimensional inspection of compatible components and workpieces.

Its carbide measuring faces, friction thimble, spherical anvil, ABS/INC function, mm/inch conversion, Set function, digital display, no-data-output design, and automatic power-off feature provide practical functionality for professional measurement environments.

For applications requiring precise measurement within the 0–25 mm / 0–1″ range, the INSIZE 3109-25A provides a compact digital solution for engineering, manufacturing, machining, workshop, industrial inspection, and quality-control applications.