Depth Gauge INSIZE 1240-2001 — measuring range 0–200 mm, resolution 0.02 mm

The INSIZE depth gauge 1240-2001 is a precision tool for measuring depths from 0 to 200 mm with a resolution of 0.02 mm. Built for workshop and inspection environments, this gauge offers accurate, repeatable readings for bores, slots, stepped surfaces and other recessed features. Its compact design and clear scale make it practical for machining, metalworking and quality-control tasks where fine depth measurement is required.

Advantages

The depth gauge delivers high-resolution measurements to 0.02 mm, enabling precise assessment of small depth variations. With a measuring range up to 200 mm it covers a wide set of common workshop needs. The instrument is designed for reliable, repeatable results suitable for routine inspection and production control. Its standard form factor provides easy access into bores and narrow slots while minimizing measurement error from handling.

Suitable for

• Measuring depths of bores and drilled holes
• Checking step heights and shoulder depths on machined parts
• Inspecting slots, recesses and counterbores
• Routine quality control and inspection in metalworking
• Use in toolrooms and maintenance workshops

When it may not be suitable

This mechanical depth gauge is intended for direct contact depth measurements and may not be suitable where non-contact or optical measurement is required, such as very soft or deformable surfaces that could be altered by probe contact. It is not designed for measurements requiring resolution finer than 0.02 mm or for continuous automated data logging without a separate digital interface or adapter.

Key specifications

• Measuring range: 0–200 mm
• Resolution: 0.02 mm
• Application: depth measurement for bores, slots, steps and recessed features
• Typical environments: workshops, toolrooms, inspection stations

How to use

Place the base of the depth gauge flat on the reference surface and lower the probe into the feature to be measured until it contacts the bottom. Read the depth value from the scale or vernier at eye level, ensuring the gauge is held perpendicular to the surface to avoid parallax errors. For repeat measurements, reposition the gauge and verify consistency; when taking measurements in tight bores use gentle, steady contact to avoid deflecting the probe or the workpiece.

What to consider before purchase

• Required measuring range — ensure 0–200 mm covers your needs
• Required resolution — 0.02 mm resolution suits many workshop and inspection tasks but not ultra-fine metrology
• Compatibility with workpiece geometry — check probe access into bores or recesses
• Need for digital output or data logging — this gauge is a manual instrument

Usage recommendations

Store the gauge in a protective case when not in use, keep contact surfaces clean and free of burrs, and check zero calibration against a known reference periodically. Use steady pressure when contacting the measured surface and verify measurements by repeating them from multiple positions when possible.