I don't care it is high quality from Mitutoyo. A great little set for a quality department that doesn't need a 80 piece set. It has served me well for over six years now.

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Steel Rectangular Micrometer Inspection Gage Block

Q: When does the calibration certificate expire?

The expiration is dependent on your quality system, frequency of use and care in handling, storage. I chose to use the calibration certificate and set a 2 year recalibration date. Other quality systems will require calibration prior to use and would not recognize the factory calibration. Having said that, the blocks will be EXTREMLY accurate if well maintained. Hope that helps.

Q: Is there a certificate stating the deviation on each block?

No there is not; If you buy this item from Mitutoyo you can ask for one, but you will pay a lot more. It never mattered to me because we were going to have it calibrated every year. If you are going to calibrate micrometers, calipers, bigger than 3 inches, this is not the set for you.

Q: Are these only used for micrometer calibration or can they be used for dial caliper calibration? Thank you.

Yes, you can calibrate both micrometers and calipers.

Product ID: 278984335

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📏9 precision steel blocks

🧊Thermally stable at 68°F

⚖️Grade AS-1 accuracy

Frequently Bought Together

Mitutoyo-516-935-26 Steel Rectangular Micrometer Inspection Gage Block Set, ASME Grade AS-1, 0.0625 - 2.0" Length (9 Blocks)

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Mitutoyo 500-197-30 Electronic Digital Caliper AOS Absolute Scale Digital Caliper, 0 to 8"/0 to 200mm Measuring Range, 0.0005"/0.01mm Resolution

Description

📐 Elevate your measurement game with precision that professionals swear by!

TRUSTED LEGACY - From Mitutoyo, a global metrology pioneer since 1934, guaranteeing quality and precision you can rely on.
CERTIFIED ACCURACY - Grade AS-1 tolerance ensures industry-leading measurement reliability for professional inspections.
PRECISION PERFECTED - Includes 9 meticulously ground steel blocks from 0.0625" to 2" for versatile calibration needs.
DURABILITY MEETS DESIGN - Crafted from corrosion-resistant steel and housed in a protective case to maintain pristine condition.
STACK WRING INNOVATION - Blocks wring together seamlessly, enabling custom lengths with ultra-flat, burr-free surfaces.

The Mitutoyo Steel Rectangular Micrometer Inspection Gage Block set features 9 precision-ground steel blocks ranging from 0.0625" to 2", all Grade AS-1 certified for exceptional accuracy. Designed for calibrating and inspecting tools, these blocks wring together to create custom lengths with minimal deviation, maintaining thermal stability at room temperature. Packaged in a protective case, this set embodies Mitutoyo’s decades-long expertise in metrology, making it an essential tool for high-precision manufacturing and quality control.

Specifications

Item Weight	907 g
Product Dimensions	24.64 x 12.7 x 4.83 cm; 907.18 g
Item model number	516-935-26

Have a Question? See What Others Asked

When does the calibration certificate expire?

Is there a certificate stating the deviation on each block?

Are these only used for micrometer calibration or can they be used for dial caliper calibration? Thank you.

Where are they made?

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