Gauge Blocks with NIST Certificate

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	Number of Pieces Number of Pieces

	Grade Grade

AS-1

	Manufacturer Model Number Manufacturer Model Number

	Manufacturer Manufacturer

Mitutoyo

	Gauge Block Grade Gauge Block Grade

AS-1

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

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8 Products

Mitutoyo Gauge Block Sets with Calibration Certificate

These sets come with a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy. They’re used for precision layout, machine setup, and producing close-tolerance dies and fixtures. Blocks 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.

For technical drawings and 3-D models, click on a part number.

Grade 0
Number of Pieces	Manufacturer Model Number	Includes	Material		Each
9	516-930-26	One block each in sizes 0.0625", 0.100", 0.125", 0.200", 0.250", 0.300", 0.500", 1.000", and 2.000" Optical Flat	Steel	0000000	0000000
10	516-103-26	One block each in sizes 1, 1.25, 1.5, 2, 3, 5, 10, 15, 20, and 25 mm.	Steel	000000	000000
35	516-914-26	Nine blocks in sizes 0.1001" to 0.1009" in 0.0001" increments Nine blocks in sizes 0.101" to 0.109" in 0.001" increments One block each in sizes 0.200", 0.300", 0.500", 1.000", 2.000", and 4.000" One block in size 0.10005" Ten blocks in sizes 0.100" to 0.190" in 0.01" increments	Steel	0000000	00000000
81	516-902-26	19 blocks in sizes 0.050" to 0.950" in 0.05" increments 49 blocks in sizes 0.101" to 0.149" in 0.001" increments Four blocks in sizes 1.000" to 4.000" in 1" increments Nine blocks in sizes 0.1001" to 0.1009" in 0.0001" increments	Steel	0000000	00000000
87	516-946-26	19 blocks in sizes 0.5 to 9.5 mm in 0.5 mm increments 49 blocks in sizes 1.01 to 1.49 mm in 0.01 mm increments Nine blocks in sizes 1.001 to 1.009 mm in 0.001 mm increments Ten blocks in sizes 10 to 100 mm in 10 mm increments.	Steel	000000	00000000
Grade AS-1
9	516-931-26	One block each in sizes 0.0625", 0.100", 0.125", 0.200", 0.250", 0.300", 0.500", 1.000", and 2.000" Optical Flat	Steel	0000000	000000
9	516-935-26	One block each in sizes 0.0625", 0.100", 0.125", 0.200", 0.250", 0.300", 0.500", 1.000", and 2.000"	Steel	0000000	000000
10	516-101-26	One block each in sizes 1, 1.25, 1.5, 2, 3, 5, 10, 15, 20, and 25 mm.	Steel	000000	000000