Gauge Block: High-Precision Calibration Standards for Metrology

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Gauge Block: Precision Dimensional Measuring Standards

This page provides an overview of gauge blocks (also known as slip gauges), which are precision measuring instruments used for dimensional calibration and verification. Made from high-quality steel or ceramic, they feature extremely flat and parallel surfaces, offering accuracy within microns. Topics include their design, grading, applications in metrology, and usage in workshops and laboratories.
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Advantages of the product

Corrosion Resistance

Nickel-plated steel or carbide coatings (hardness 1300HV) protect against wear and chemical damage, extending service life in harsh industrial environments.

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The head of the micrometer along with the spindle, thimble, and ratchet stop form a micrometer which is a mechanical instrument which gives accurate linear measurements. Its construction consists of hardened steel (60-62 HRC) and it has a 0.5mm pitch screw that allows it a resolution of 0.01mm, with an accuracy of ±0.002mm. Digitalized micrometer heads with USB outputs and LCD displays (resolution of 0.0001mm) are prevalent in metrology labs, while interchangeable heads enable multi- functional setups for depth, internal, and external measurements.

Frequently Asked Questions

What is the precision of gauge blocks?

They offer tolerance classes up to IT0 (±0.0005mm) and surface flatness ≤0.0002mm, ideal for calibrating CMMs, micrometers, and calipers in metrology labs.

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Customer Reviews

Avery

The IT0-grade blocks (±0.0005mm tolerance) formed the backbone of our calibration lab. Their lapped surfaces (Ra≤0.02μm) ensured CMM accuracy, critical for aerospace component certification.

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inside micrometer gauge block 3 point internal micrometer ceramic gauge block calibration gauge block
Compliance with Global Standards

Compliance with Global Standards

Meets ISO 3650, ASME B89.1.9, and JIS B7506 standards, ensuring compatibility with international calibration protocols in aerospace, automotive, and semiconductor industries.
Easy Maintenance

Easy Maintenance

Lapped surfaces require minimal cleaning (alcohol wipes) and storage in temperature-controlled environments, reducing upkeep costs for metrology departments.
Multi-Application Use

Multi-Application Use

Used in labs for tool calibration, on shop floors for machine alignment, and in research for precision spacing in optical setups. Critical for maintaining quality control in ISO 17025-certified facilities.
Cost-Effective Calibration

Cost-Effective Calibration

Reusable and long-lasting, gauge blocks offer a cost-effective alternative to disposable calibration standards, providing reliable accuracy for decades with proper care.