Measuring Tool INSIZE 2724-S3 digital dial bore gauge 18–160 mm range

INSIZE 2724-S3 digital dial bore gauge 18–160 mm is an electronic measuring instrument for checking internal diameters and bores with a wide measuring range. The tool combines a mechanical probe assembly with a digital readout to deliver direct numerical results, enabling fast measurement of cylindrical holes, counterbores and internal features in machining and inspection environments.

Advantages

The digital dial display provides clear numerical readouts and reduces reading errors compared with analog indicators. A measuring range of 18–160 mm covers small to relatively large bores, reducing the need for multiple gauges. The device is designed for workshop and quality-control use, offering repeatable measurements and straightforward operation. The robust probe assembly and contact anvils support stable positioning inside the bore and consistent contact with internal surfaces.

Suitable for

• Measuring internal diameters of cylindrical bores and sleeves
• Quality control inspections in machining and production
• Setup and verification of machine tools and jigs
• Maintenance checks on equipment with internal cylindrical features

When it may not be suitable

This digital dial bore gauge is intended for internal diameter measurement within the stated 18–160 mm range and is not suitable for outside diameter or depth measurements without appropriate adapters. It may not be the best choice for extremely fine resolution tasks that require metrological-grade instruments with traceable calibration certificates, or for measuring highly irregular or non-cylindrical internal geometries where contact probing cannot establish consistent reference points.

Key specifications

• Measuring range: 18–160 mm
• Display: digital dial readout for direct numerical measurement
• Application: internal diameter / bore measurement
• Intended use: workshop, quality control, machining inspection

How to use

Insert the probe assembly into the bore to be measured and position the contact anvils so they make consistent contact with the internal surface. Zero or set the digital display using a calibrated ring gauge or reference standard if required, then rock the gauge gently to find the minimum reading that corresponds to the true diameter. Take multiple measurements along the bore axis and at different depths if checking taper or out-of-round conditions. Handle the instrument carefully and avoid side loads that can affect accuracy.

What to consider before purchase

• Ensure the 18–160 mm measuring range matches the diameters you need to inspect
• Check required measurement resolution and accuracy against your quality standards
• Confirm compatibility with available reference gauges or calibration services
• Consider the working environment (temperature, cleanliness) and how it may affect measurements

Usage recommendations

The INSIZE 2724-S3 performs best when used with proper calibration rings and consistent measurement technique: warm up the instrument in the working environment, clean both gauge and measured surface, zero the display on a traceable standard, and record multiple readings to verify repeatability.