Does the set come with a certificate?

Yes, the gage block set includes a certificate from the manufacturer. However, for true NIST traceability and to ensure the highest level of accuracy, we recommend having the set calibrated by an accredited laboratory.

What does "Grade B" mean?

Grade B refers to compliance with ASME B89.1.9-2002 standards. This grade is ideal for general-purpose shop use, offering reliable performance for a variety of measurement tasks.

Can I use a caliper to calibrate the gage blocks?

No, gage blocks are more accurate than calipers. Use the gage blocks to calibrate the caliper instead. For calibrating the gage blocks, a higher-accuracy tool like a micrometer is recommended.

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📏 Measure with Mastery — Precision that Powers Your Projects

BUILT TO LAST - Hardened to HRC 64 for superior durability and corrosion resistance
TRUSTED ACCURACY - Ideal for professionals demanding reliable, repeatable gauge calibration
INDUSTRY STANDARD - Meets or exceeds ASME B89.1.9-2002 federal specifications
PRECISION PERFECTED - 81-piece set engineered for exact measurements at 68°F (20°C)
CERTIFIED CONFIDENCE - Includes manufacturer’s certificate with serial numbers and deviation data

The Accusize Industrial Tools 81-Piece Steel Gauge Block Set offers Grade B accuracy with certified precision, hardened steel construction (HRC 64), and corrosion resistance. Each block is serial numbered and certified, meeting stringent ASME B89.1.9-2002 standards, making it an essential calibration tool for professionals seeking reliable, high-accuracy measurements.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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