Plug Gauge Sets

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Plug Gauge Size

Size-Checking Gauge Class

Increment

Gauge Measurement Type

Container Type

Number of Pieces

Surface Smoothness, RMS

Export Control Classification Number (ECCN)

EAR99

REACH

Compliant

DFARS Specialty Metals

RoHS

265 Products

Keep dozens of plug gauges on hand to check a range of hole sizes. You’ll often hear them called pin gauges. Use them to measure hole size and depth with precise go/no-go tests, check hole location and distance, and set micrometers. Sets include a manufacturer's certificate of accuracy to certify diameters are within tolerance. Gauges are tool steel, so they’re strong, hard, and resist wear.

If a go gauge can enter the hole and a no-go gauge is unable to enter, the hole is within tolerance.

Choose a class based on the level of precision you need—the smaller the tolerance, the greater the accuracy. Classes are based on ASME standard B89.1.5, which states diameter won’t vary more than the listed plug gauge tolerance.

Case

Go Gauges—Go gauges check the minimum hole diameter.

No-Go Gauges—No-go gauges check the maximum hole diameter.

Class X Gauge—Class X gauges are the most accurate type we sell. Use them for high-precision work.

Class Z Gauge—Class Z gauges are the most common. You'll often find them used on shop floors.

Class ZZ Gauge—Class ZZ gauges are ideal for quick checks that don't require extreme precision.

Black-Oxide Tool Steel—Black-oxide tool steel gauges show wear patterns, so you know when to calibrate or replace them.

	Plug Gauge Size	Increment	No. of Pieces	Lg.	Surface Smoothness, RMS, μin	Material	Plug Gauge Size Tolerance	Specs. Met		Each
Go Gauges







				Class X Gauge

				0.0110" to 0.0600"	0.001"	50	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	00000000	0000000


				0.0110" to 0.2500"	0.001"	240	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	00000000	00000000
				0.0115" to 0.0605"	0.001"	50	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	00000000	000000
				0.0115" to 0.2505"	0.001"	240	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	00000000	00000000
				0.0610" to 0.2500"	0.001"	190	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	00000000	00000000
				0.0615" to 0.2505"	0.001"	190	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	00000000	00000000
				0.2510" to 0.5000"	0.001"	250	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	00000000	00000000
				0.2515" to 0.5005"	0.001"	250	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	00000000	00000000
				0.5010" to 0.6250"	0.001"	125	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	00000000	00000000
				0.5015" to 0.6255"	0.001"	125	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	00000000	00000000
				0.6260" to 0.7500"	0.001"	125	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	00000000	00000000


				0.6265" to 0.7505"	0.001"	125	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	00000000	00000000
				0.7510" to 0.8320"	0.001"	82	2"	4	Tool Steel	0" to 0.00006"	ASME B89.1.5	00000000	00000000
				0.7515" to 0.8325"	0.001"	82	2"	4	Tool Steel	0" to 0.00006"	ASME B89.1.5	00000000	00000000
				0.8330" to 0.9160"	0.001"	84	2"	4	Tool Steel	0" to 0.00006"	ASME B89.1.5	00000000	00000000
				0.8335" to 0.9165"	0.001"	84	2"	4	Tool Steel	0" to 0.00006"	ASME B89.1.5	00000000	00000000
				0.9170" to 1.0000"	0.001"	84	2"	4	Tool Steel	0" to 0.00006"	ASME B89.1.5	00000000	00000000
				0.9175" to 1.0005"	0.001"	84	2"	4	Tool Steel	0" to 0.00006"	ASME B89.1.5	00000000	00000000




						Class Z Gauge

						0.0110" to 0.0600"	0.001"	50	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000


						0.0110" to 0.2500"	0.001"	240	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000
						0.0115" to 0.0605"	0.001"	50	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000
						0.0115" to 0.2505"	0.001"	240	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000
						0.0610" to 0.2500"	0.001"	190	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000
						0.0615" to 0.2505"	0.001"	190	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000
						0.2510" to 0.5000"	0.001"	250	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000
						0.2515" to 0.5005"	0.001"	250	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000
						0.5010" to 0.6250"	0.001"	125	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000
						0.5015" to 0.6255"	0.001"	125	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000
						0.6260" to 0.7500"	0.001"	125	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000


						0.6265" to 0.7505"	0.001"	125	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000
						0.7510" to 0.8320"	0.001"	82	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000
						0.7515" to 0.8325"	0.001"	82	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000
						0.8330" to 0.9160"	0.001"	84	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	00000000
						0.8335" to 0.9165"	0.001"	84	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	00000000
						0.9170" to 1.0000"	0.001"	84	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	00000000
						0.9175" to 1.0005"	0.001"	84	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	00000000
						0.2200 mm to 1.5000 mm	0.02 mm	65	2"	8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	0000000	000000
						0.2300 mm to 1.5100 mm	0.02 mm	65	2"	8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	00000000	000000
						1.5200 mm to 7.7000 mm	0.02 mm	310	2"	8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	00000000	000000


1.5300 mm to 7.7100 mm						0.02 mm	310	2"	8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	00000000	000000
7.7200 mm to 12.7000 mm	0.02 mm					250	2"	8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	00000000	000000
7.7300 mm to 12.7100 mm	0.02 mm					250	2"	8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	00000000	000000
12.7200 mm to 15.3000 mm	0.02 mm					130	2"	8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	00000000	000000
12.7300 mm to 15.3100 mm	0.02 mm					130	2"	8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	00000000	000000
15.3200 mm to 17.8000 mm	0.02 mm	125				2"	8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	00000000	000000
15.3300 mm to 17.8100 mm	0.02 mm	125	2"			8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	00000000	000000
17.8200 mm to 20.3600 mm	0.02 mm	128	2"			8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	00000000	000000
17.8300 mm to 20.3700 mm	0.02 mm	128	2"			8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	00000000	000000




		Class ZZ Gauge

		0.0060" to 0.0600"	0.001"			55	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000


		0.0065" to 0.0605"	0.001"			55	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000
		0.0110" to 0.0600"	0.001"			50	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	0000000	00000
		0.0110" to 0.2500"	0.001"			240	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000
		0.0115" to 0.0605"	0.001"			50	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	00000
		0.0115" to 0.2505"	0.001"			240	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000
		0.0610" to 0.2500"	0.001"			190	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	0000000	000000
		0.0615" to 0.2505"	0.001"			190	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000
		0.2510" to 0.5000"	0.001"			250	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	0000000	000000
		0.2515" to 0.5005"	0.001"			250	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000
		0.5010" to 0.6250"	0.001"			125	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	0000000	000000


		0.5015" to 0.6255"	0.001"			125	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000
		0.6260" to 0.7500"	0.001"			125	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	0000000	000000
		0.6265" to 0.7505"	0.001"			125	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000
		0.7510" to 0.8320"	0.001"			82	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000
		0.7515" to 0.8325"	0.001"	82		2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000
		0.8330" to 0.9160"	0.001"	84	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000
		0.8335" to 0.9165"	0.001"	84	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000
		0.9170" to 1.0000"	0.001"	84	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000
		0.9175" to 1.0005"	0.001"	84	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	00000000	000000
		0.2000 mm to 1.2800 mm	0.02 mm	55	2"	10	Black-Oxide Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	00000000	000000


		0.2100 mm to 1.2900 mm	0.02 mm	55	2"	10	Black-Oxide Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	00000000	000000
		1.3000 mm to 4.9800 mm	0.02 mm	185	2"	10	Black-Oxide Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	00000000	000000
		1.3000 mm to 4.9800 mm	0.02 mm	185	2"	10	Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	0000000	000000
		1.3100 mm to 4.9900 mm	0.02 mm	185	2"	10	Black-Oxide Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	00000000	000000
		5.0000 mm to 9.9800 mm	0.02 mm	250	2"	10	Black-Oxide Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	00000000	000000
		5.0000 mm to 9.9800 mm	0.02 mm	250	2"	10	Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	0000000	000000
		5.0100 mm to 9.9900 mm	0.02 mm	250	2"	10	Black-Oxide Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	00000000	000000
		10.0000 mm to 13.9800 mm	0.02 mm	200	2"	10	Black-Oxide Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	00000000	000000
		10.0000 mm to 13.9800 mm	0.02 mm	200	2"	10	Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	0000000	000000
		10.0100 mm to 13.9900 mm	0.02 mm	200	2"	10	Black-Oxide Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	00000000	000000


		14.0000 mm to 16.4800 mm	0.02 mm	125	2"	10	Black-Oxide Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	00000000	000000
		14.0100 mm to 16.4900 mm	0.02 mm	125	2"	10	Black-Oxide Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	00000000	000000
		16.5000 mm to 18.9800 mm	0.02 mm	125	2"	10	Black-Oxide Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	00000000	000000
		16.5100 mm to 18.9900 mm	0.02 mm	125	2"	10	Black-Oxide Tool Steel	0 mm to 0.005 mm	ASME B89.1.5	00000000	000000
		19.0000 mm to 20.9800 mm	0.02 mm	100	2"	10	Black-Oxide Tool Steel	0 mm to 0.0061 mm	ASME B89.1.5	00000000	000000
		19.0100 mm to 20.9900 mm	0.02 mm	100	2"	10	Black-Oxide Tool Steel	0 mm to 0.0061 mm	ASME B89.1.5	00000000	000000


		No-Go Gauges







						Class X Gauge

						0.0110" to 0.0600"	0.001"	50	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	00000000	000000


0.0110" to 0.2500"						0.001"	240	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	00000000	00000000
0.0115" to 0.0605"	0.001"					50	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	00000000	000000
0.0115" to 0.2505"	0.001"					240	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	00000000	00000000
0.0610" to 0.2500"	0.001"					190	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	00000000	00000000
0.0615" to 0.2505"	0.001"					190	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	00000000	00000000
0.2510" to 0.5000"	0.001"					250	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	00000000	00000000
0.2515" to 0.5005"	0.001"					250	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	00000000	00000000
0.5010" to 0.6250"	0.001"					125	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	00000000	00000000
0.5015" to 0.6255"	0.001"					125	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	00000000	00000000
0.6260" to 0.7500"	0.001"					125	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	00000000	00000000


0.6265" to 0.7505"	0.001"					125	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	00000000	00000000
0.7510" to 0.8320"	0.001"					82	2"	4	Tool Steel	-0.00006" to 0"	ASME B89.1.5	00000000	00000000
0.7515" to 0.8325"	0.001"					82	2"	4	Tool Steel	-0.00006" to 0"	ASME B89.1.5	00000000	00000000
0.8330" to 0.9160"	0.001"					84	2"	4	Tool Steel	-0.00006" to 0"	ASME B89.1.5	00000000	00000000
0.8335" to 0.9165"	0.001"					84	2"	4	Tool Steel	-0.00006" to 0"	ASME B89.1.5	00000000	00000000
0.9170" to 1.0000"	0.001"					84	2"	4	Tool Steel	-0.00006" to 0"	ASME B89.1.5	00000000	00000000
0.9175" to 1.0005"	0.001"					84	2"	4	Tool Steel	-0.00006" to 0"	ASME B89.1.5	00000000	00000000




						Class Z Gauge

						0.0110" to 0.0600"	0.001"	50	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000


						0.0110" to 0.2500"	0.001"	240	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000
						0.0115" to 0.0605"	0.001"	50	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000
						0.0115" to 0.2505"	0.001"	240	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000
						0.0610" to 0.2500"	0.001"	190	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000
						0.0615" to 0.2505"	0.001"	190	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000
						0.2510" to 0.5000"	0.001"	250	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000
						0.2515" to 0.5005"	0.001"	250	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000
						0.5010" to 0.6250"	0.001"	125	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000
						0.5015" to 0.6255"	0.001"	125	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000
						0.6260" to 0.7500"	0.001"	125	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000


						0.6265" to 0.7505"	0.001"	125	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000
						0.7510" to 0.8320"	0.001"	82	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000
						0.7515" to 0.8325"	0.001"	82	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	000000
						0.8330" to 0.9160"	0.001"	84	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	00000000
						0.8335" to 0.9165"	0.001"	84	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	00000000
						0.9170" to 1.0000"	0.001"	84	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	00000000
						0.9175" to 1.0005"	0.001"	84	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	00000000
						0.2200 mm to 1.5000 mm	0.02 mm	65	2"	8	Tool Steel	-0.0025 mm to 0 mm	ASME B89.1.5	0000000	000000
						0.2300 mm to 1.5100 mm	0.02 mm	65	2"	8	Tool Steel	-0.0025 mm to 0 mm	ASME B89.1.5	00000000	000000
						1.5200 mm to 7.7000 mm	0.02 mm	310	2"	8	Tool Steel	-0.0025 mm to 0 mm	ASME B89.1.5	00000000	000000


		1.5300 mm to 7.7100 mm				0.02 mm	310	2"	8	Tool Steel	-0.0025 mm to 0 mm	ASME B89.1.5	00000000	000000
		7.7200 mm to 12.7000 mm	0.02 mm			250	2"	8	Tool Steel	-0.0025 mm to 0 mm	ASME B89.1.5	00000000	000000
		7.7300 mm to 12.7100 mm	0.02 mm			250	2"	8	Tool Steel	-0.0025 mm to 0 mm	ASME B89.1.5	00000000	000000
		12.7200 mm to 15.3000 mm	0.02 mm			130	2"	8	Tool Steel	-0.0025 mm to 0 mm	ASME B89.1.5	00000000	000000
		12.7300 mm to 15.3100 mm	0.02 mm			130	2"	8	Tool Steel	-0.0025 mm to 0 mm	ASME B89.1.5	00000000	000000
		15.3200 mm to 17.8000 mm	0.02 mm	125		2"	8	Tool Steel	-0.0025 mm to 0 mm	ASME B89.1.5	00000000	000000
		15.3300 mm to 17.8100 mm	0.02 mm	125	2"	8	Tool Steel	-0.0025 mm to 0 mm	ASME B89.1.5	00000000	000000
		17.8200 mm to 20.3600 mm	0.02 mm	128	2"	8	Tool Steel	-0.0025 mm to 0 mm	ASME B89.1.5	00000000	000000
		17.8300 mm to 20.3700 mm	0.02 mm	128	2"	8	Tool Steel	-0.0025 mm to 0 mm	ASME B89.1.5	00000000	000000




				Class ZZ Gauge

				0.0060" to 0.0600"	0.001"	55	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000


				0.0065" to 0.0605"	0.001"	55	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000
				0.0110" to 0.0600"	0.001"	50	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	0000000	00000
				0.0110" to 0.2500"	0.001"	240	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000
				0.0115" to 0.0605"	0.001"	50	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	00000
				0.0115" to 0.2505"	0.001"	240	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000
				0.0610" to 0.2500"	0.001"	190	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	0000000	000000
				0.0615" to 0.2505"	0.001"	190	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000
				0.2510" to 0.5000"	0.001"	250	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	0000000	000000
				0.2515" to 0.5005"	0.001"	250	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000
				0.5010" to 0.6250"	0.001"	125	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	0000000	000000


				0.5015" to 0.6255"	0.001"	125	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000
				0.6260" to 0.7500"	0.001"	125	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	0000000	000000
				0.6265" to 0.7505"	0.001"	125	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000
0.7510" to 0.8320"				0.001"	82	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000
0.7515" to 0.8325"	0.001"			82	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000
0.8330" to 0.9160"	0.001"			84	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000
0.8335" to 0.9165"	0.001"			84	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000
0.9170" to 1.0000"	0.001"			84	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000
0.9175" to 1.0005"	0.001"			84	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	00000000	000000
0.2000 mm to 1.2800 mm	0.02 mm			55	2"	10	Black-Oxide Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	00000000	000000


0.2100 mm to 1.2900 mm	0.02 mm			55	2"	10	Black-Oxide Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	00000000	000000
1.3000 mm to 4.9800 mm	0.02 mm			185	2"	10	Black-Oxide Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	00000000	000000
1.3000 mm to 4.9800 mm	0.02 mm			185	2"	10	Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	0000000	000000
1.3100 mm to 4.9900 mm	0.02 mm			185	2"	10	Black-Oxide Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	00000000	000000
5.0000 mm to 9.9800 mm	0.02 mm			250	2"	10	Black-Oxide Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	00000000	000000
5.0000 mm to 9.9800 mm	0.02 mm			250	2"	10	Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	0000000	000000
5.0100 mm to 9.9900 mm	0.02 mm			250	2"	10	Black-Oxide Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	00000000	000000
10.0000 mm to 13.9800 mm	0.02 mm			200	2"	10	Black-Oxide Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	00000000	000000
10.0000 mm to 13.9800 mm	0.02 mm			200	2"	10	Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	0000000	000000
10.0100 mm to 13.9900 mm	0.02 mm			200	2"	10	Black-Oxide Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	00000000	000000


14.0000 mm to 16.4800 mm	0.02 mm			125	2"	10	Black-Oxide Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	00000000	000000
14.0100 mm to 16.4900 mm	0.02 mm			125	2"	10	Black-Oxide Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	00000000	000000
16.5000 mm to 18.9800 mm	0.02 mm			125	2"	10	Black-Oxide Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	00000000	000000
16.5100 mm to 18.9900 mm	0.02 mm			125	2"	10	Black-Oxide Tool Steel	-0.005 mm to 0 mm	ASME B89.1.5	00000000	000000
19.0000 mm to 20.9800 mm	0.02 mm			100	2"	10	Black-Oxide Tool Steel	-0.0061 mm to 0 mm	ASME B89.1.5	00000000	000000
19.0100 mm to 20.9900 mm	0.02 mm			100	2"	10	Black-Oxide Tool Steel	-0.0061 mm to 0 mm	ASME B89.1.5	00000000	000000

Cabinet

Go Gauges—Go gauges check the minimum hole diameter.

No-Go Gauges—No-go gauges check the maximum hole diameter.

Class Z Gauge—Class Z gauges are the most common. You'll often find them used on shop floors.

	Lg.	Surface Smoothness, RMS, μin	Material	Plug Gauge Size Tolerance	Specs. Met		Each
Go Gauges







	Class Z Gauge

	0.0110" to 0.5005"	0.0005"	980	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	0000000	000000000


	0.0110" to 0.6250"	0.001"	615	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	00000000	00000000
	0.0110" to 0.7500"	0.001"	740	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	00000000	00000000
	0.0110" to 1.0000"	0.001"	990	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	00000000	00000000
	0.0115" to 0.7505"	0.001"	740	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	00000000	00000000
	0.0115" to 1.0005"	0.001"	990	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	00000000	00000000
	0.0610" to 0.5005"	0.0005"	880	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	00000000	00000000
	0.0610" to 0.7500"	0.001"	690	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	00000000	00000000
	0.0610" to 1.0000"	0.001"	940	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	00000000	00000000
	0.0615" to 0.7505"	0.001"	690	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	00000000	00000000
	0.0615" to 1.0005"	0.001"	940	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	00000000	00000000


	0.7510" to 1.0000"	0.001"	250	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	00000000	00000000
	0.7515" to 1.0005"	0.001"	250	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	00000000	00000000
	1.5200 mm to 17.8000 mm	0.02 mm	815	2"	8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	00000000	00000000
	1.5300 mm to 17.8100 mm	0.02 mm	815	2"	8	Tool Steel	0 mm to 0.0025 mm	ASME B89.1.5	00000000	00000000


	No-Go Gauges







					Class Z Gauge

					0.0110" to 0.5005"	0.0005"	980	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	0000000	00000000


					0.0110" to 0.6250"	0.001"	615	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	00000000	00000000
					0.0110" to 0.7500"	0.001"	740	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	00000000	00000000
					0.0110" to 1.0000"	0.001"	990	2"	8	Tool Steel	-0.00012" to 0"	ASME B89.1.5	00000000	00000000
					0.0115" to 0.7505"	0.001"	740	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	00000000	00000000
					0.0115" to 1.0005"	0.001"	990	2"	8	Tool Steel	-0.00012" to 0"	ASME B89.1.5	00000000	00000000
					0.0610" to 0.5005"	0.0005"	880	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	00000000	00000000
					0.0610" to 0.7500"	0.001"	690	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	00000000	00000000
					0.0610" to 1.0000"	0.001"	940	2"	8	Tool Steel	-0.00012" to 0"	ASME B89.1.5	00000000	00000000
					0.0615" to 0.7505"	0.001"	690	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	00000000	00000000
					0.0615" to 1.0005"	0.001"	940	2"	8	Tool Steel	-0.00012" to 0"	ASME B89.1.5	00000000	00000000


					0.7510" to 1.0000"	0.001"	250	2"	8	Tool Steel	-0.00012" to 0"	ASME B89.1.5	00000000	00000000
					0.7515" to 1.0005"	0.001"	250	2"	8	Tool Steel	-0.00012" to 0"	ASME B89.1.5	00000000	00000000
					1.5200 mm to 17.8000 mm	0.02 mm	815	2"	8	Tool Steel	-0.00254 mm to 0 mm	ASME B89.1.5	00000000	00000000
					1.5300 mm to 17.8100 mm	0.02 mm	815	2"	8	Tool Steel	-0.00254 mm to 0 mm	ASME B89.1.5	00000000	00000000

Target-Size Plug Gauge Sets

Get your choice of one target-size gauge with 12 larger gauges and 12 smaller gauges, graduated in 0.0001”. Use these sets to measure hole sizes and depths, check hole locations and distance, and set micrometers. Also known as tenth-step gauges, they’re often used in metrology labs, quality control departments, and tool rooms for setting snap gauges and comparators.

The most accurate type of gauge we sell, these sets are rated Class X. The class is based on ASME standard B89.1.5, which states their diameter won’t vary more than 0.00004”. This ensures accurate measurements when checking finished parts. Each set includes a manufacturer's certificate of accuracy to certify the diameters are within tolerance.

All sets come in a case to keep them organized and protected.

If a go gauge can enter the hole and a no-go gauge is unable to enter, the hole is within tolerance.

Go Gauges—Go gauges check the minimum hole diameter.

No-Go Gauges—No-go gauges check the maximum hole diameter.

Tool Steel—Made of tool steel, these gauges are strong and hard, so they won’t wear down easily.

									Go Gauges			No-Go Gauges
	Plug Gauge Size	Increment	No. of Pieces	Lg.	Surface Smoothness, RMS, μin	Hardness	Material	Specs. Met	Plug Gauge Size Tolerance		Each	Plug Gauge Size Tolerance		Each
Class X Gauge



		0.0156"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	0000000	-0.00004" to 0"	00000000	0000000


		0.0312"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.0469"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000
		0.0625"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.0781"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.0937"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.1094"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.1250"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.1406"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000
		0.1562"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.1719"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000


		0.1875"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.2031"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.2187"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.2344"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.2500"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.2656"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.2812"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.2969"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000
		0.3125"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.3281"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000


		0.3437"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000
		0.3594"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000
		0.3750"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.3906"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.4062"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000
		0.4219"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.4375"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.4531"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000
		0.4687"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000
		0.4844"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000


		0.5000"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.5156"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000
		0.5312"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	-0.00004" to 0"	00000000	000000
		0.5469"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000
		0.5625"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000
		0.5781"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000
		0.5937"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	00000000	000000
		0.6250"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	—	———	0
		0.6562"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	—	———	0
		0.6719"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	—	———	0


		0.7500"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	00000000	000000	—	———	0