System of Measurement System of Measurement |
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Size Size | Show |
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Size Size | Hide |
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Manufacturer Manufacturer |
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Width Width |
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Length Length |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Gauge Block Grade Gauge Block Grade |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Grade Grade |
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Gauge Blocks


Vital for dimensional quality control, these gauge blocks are often used for precision layout, machine setup, and producing close-tolerance dies and fixtures. All are high-carbon, high-chrome steel and have excellent stability and resistance to thermal expansion.
Gauge blocks are classified by grade based on tolerance—the smaller the tolerance, the greater the accuracy. All blocks are individually numbered for recalibration at a later date.
Size refers to the distance between the block’s two measuring surfaces. To get a size that isn’t offered, press two clean blocks together with a twisting/sliding motion.
For technical drawings and 3-D models, click on a part number.
Size | Size Tolerance | Lg. | Wd. | Manufacturer | Material | Specifications Met | Each | |
Rectangular | ||||||||
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Grade 0 | ||||||||
0.7mm | -0.00012mm to 0.00012mm | 30mm | 9mm | Mitutoyo | Steel | ASME B89.1.9 | 0000000 | 000000 |