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

Ultra-High Precision

Tolerance classes up to IT0 (±0.0005mm) and surface flatness ≤0.0002mm make them ideal for calibrating CMMs, micrometers, and calipers. Essential in metrology labs for traceable measurements.

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Used for calibration and spacing, slip gauges also called gauge blocks are ceramic or steel blocks which are ground to precision. They are supplied in inch/metric sets, have Ra≤0.02μm lapped surfaces, and can be wrung to generate custom lengths measuring(tolerance: ±0.0005mm). While tungsten carbide slip gauges aide in resisting corrosion in hostile environments, needed slip gauges have ceramic variants (thermal expansion ≤3×10⁻⁶/°C) complying with ISO 3650 and JIS B7506 standards and are ideal for high precision labs.

Frequently Asked Questions

What materials are gauge blocks made of?

Stabilized steel (AISI 440C) or ceramic (zirconia) with thermal expansion ≤3×10⁻⁶/°C, ensuring dimensional stability across temperature variations (20±5°C).

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Customer Reviews

Cameron

Requiring only alcohol wipes for cleaning, these nickel-plated blocks remained accurate after 10+ years of use. Ideal for budget-conscious shops needing reliable traceability.

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slip gauge outside micrometer micrometer set 3 point internal micrometer inch 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.