INSIZE gauge block plate 25 mm class 2 model 4101-C25

INSIZE gauge block plate 25 mm class 2 model 4101-C25 is a precision reference standard intended for establishing short reference lengths and verifying dimensional accuracy. With a nominal length of 25 mm and manufactured to class 2 tolerances, the plate is designed for use in calibration, inspection and setup tasks in workshops and metrology laboratories. It is suitable for use with comparators, micrometers, calipers and other length-measuring instruments where a stable, known reference is required.

Advantages

The gauge block plate provides a stable and repeatable 25 mm reference length that helps reduce measurement uncertainty during instrument setup and verification. Manufactured by INSIZE to defined metrological tolerances, the plate offers reliable dimensional stability for routine checks and laboratory use. Its compact size and straightforward geometry make it easy to handle, position and integrate into measurement workflows.

Suitable for

• Calibration and verification of micrometers, calipers and gauges
• Setting up comparators and optical measurement devices
• Routine dimensional checks in workshops and quality control
• Reference length for metrology benches and fixture alignment

When it may not be suitable

The 25 mm class 2 gauge block plate is intended for short reference measurements and routine verification rather than primary standards or high-precision laboratory artefacts requiring higher accuracy classes. For applications demanding the lowest possible uncertainty or traceable primary standards, a higher class gauge or calibrated reference with a documented calibration certificate may be more appropriate.

Key specifications

• Nominal length: 25 mm
• Accuracy class: Class 2 (metrological tolerance per manufacturer classification)
• Material: hard-stable metal suitable for gauge blocks (manufacturer-specified)
• Typical use temperature range: workshop and laboratory ambient conditions
• Geometry: rectangular gauge block plate for stable seating and alignment

How to use

Handle the gauge plate with clean, dry hands or suitable gloves to avoid contamination and transfer of oils. Place the plate on a stable, vibration-free surface or fixture and bring the measuring instrument into contact according to the instrument's operating procedure. Allow the plate and instrument to reach the same ambient temperature before taking measurements to reduce thermal effects. For comparative checks, follow the instrument manufacturer's recommended measurement sequence and record deviations from the 25 mm reference.

What to consider before purchase

• Verify that class 2 accuracy meets your required measurement uncertainty for the intended tasks
• Check compatibility of the 25 mm reference length with your instruments and fixtures
• Consider whether a calibration certificate or higher accuracy class is necessary for traceability

Usage recommendations

Store the gauge block plate in a clean, dry case when not in use, avoid direct contact with corrosive substances, and perform periodic checks against a higher-grade standard or calibrated reference to maintain reliable measurement performance.