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

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

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	2326A612	0000000


				0.0110" to 0.2500"	0.001"	240	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	2326A621	00000000
				0.0115" to 0.0605"	0.001"	50	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	2326A614	000000
				0.0115" to 0.2505"	0.001"	240	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	2326A623	00000000
				0.0610" to 0.2500"	0.001"	190	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	2326A616	00000000
				0.0615" to 0.2505"	0.001"	190	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	2326A618	00000000
				0.2510" to 0.5000"	0.001"	250	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	2326A625	00000000
				0.2515" to 0.5005"	0.001"	250	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	2326A627	00000000
				0.5010" to 0.6250"	0.001"	125	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	2326A629	00000000
				0.5015" to 0.6255"	0.001"	125	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	2326A632	00000000
				0.6260" to 0.7500"	0.001"	125	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	2326A634	00000000


				0.6265" to 0.7505"	0.001"	125	2"	4	Tool Steel	0" to 0.00004"	ASME B89.1.5	2326A636	00000000
				0.7510" to 0.8320"	0.001"	82	2"	4	Tool Steel	0" to 0.00006"	ASME B89.1.5	2326A638	00000000
				0.7515" to 0.8325"	0.001"	82	2"	4	Tool Steel	0" to 0.00006"	ASME B89.1.5	2326A641	00000000
				0.8330" to 0.9160"	0.001"	84	2"	4	Tool Steel	0" to 0.00006"	ASME B89.1.5	2326A643	00000000
				0.8335" to 0.9165"	0.001"	84	2"	4	Tool Steel	0" to 0.00006"	ASME B89.1.5	2326A645	00000000
				0.9170" to 1.0000"	0.001"	84	2"	4	Tool Steel	0" to 0.00006"	ASME B89.1.5	2326A647	00000000
				0.9175" to 1.0005"	0.001"	84	2"	4	Tool Steel	0" to 0.00006"	ASME B89.1.5	2326A649	00000000




						Class Z Gauge

						0.0110" to 0.0600"	0.001"	50	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A11	000000


						0.0110" to 0.2500"	0.001"	240	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A19	000000
						0.0115" to 0.0605"	0.001"	50	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A21	000000
						0.0115" to 0.2505"	0.001"	240	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A29	000000
						0.0610" to 0.2500"	0.001"	190	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A12	000000
						0.0615" to 0.2505"	0.001"	190	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A22	000000
						0.2510" to 0.5000"	0.001"	250	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A13	000000
						0.2515" to 0.5005"	0.001"	250	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A23	000000
						0.5010" to 0.6250"	0.001"	125	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A14	000000
						0.5015" to 0.6255"	0.001"	125	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A44	000000
						0.6260" to 0.7500"	0.001"	125	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A15	000000


						0.6265" to 0.7505"	0.001"	125	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A45	000000
						0.7510" to 0.8320"	0.001"	82	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A16	000000
						0.7515" to 0.8325"	0.001"	82	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A46	000000
						0.8330" to 0.9160"	0.001"	84	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A51	00000000
						0.8335" to 0.9165"	0.001"	84	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A47	00000000
						0.9170" to 1.0000"	0.001"	84	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A52	00000000
						0.9175" to 1.0005"	0.001"	84	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	2326A48	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	2326A61	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	2326A512	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	2326A514	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	2326A516	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	2326A518	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	2326A521	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	2326A523	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	2326A525	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	2326A527	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	2326A529	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	2326A532	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	2326A534	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	2326A111	000000


		0.0065" to 0.0605"	0.001"			55	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A112	000000
		0.0110" to 0.0600"	0.001"			50	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2327A11	00000
		0.0110" to 0.2500"	0.001"			240	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A114	000000
		0.0115" to 0.0605"	0.001"			50	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A113	00000
		0.0115" to 0.2505"	0.001"			240	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A115	000000
		0.0610" to 0.2500"	0.001"			190	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2327A12	000000
		0.0615" to 0.2505"	0.001"			190	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A116	000000
		0.2510" to 0.5000"	0.001"			250	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2327A13	000000
		0.2515" to 0.5005"	0.001"			250	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A117	000000
		0.5010" to 0.6250"	0.001"			125	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2327A14	000000


		0.5015" to 0.6255"	0.001"			125	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A118	000000
		0.6260" to 0.7500"	0.001"			125	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2327A15	000000
		0.6265" to 0.7505"	0.001"			125	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A119	000000
		0.7510" to 0.8320"	0.001"			82	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A121	000000
		0.7515" to 0.8325"	0.001"	82		2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A122	000000
		0.8330" to 0.9160"	0.001"	84	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A123	000000
		0.8335" to 0.9165"	0.001"	84	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A124	000000
		0.9170" to 1.0000"	0.001"	84	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A125	000000
		0.9175" to 1.0005"	0.001"	84	2"	10	Black-Oxide Tool Steel	0" to 0.0002"	ASME B89.1.5	2326A126	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	2326A311	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	2326A312	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	2326A313	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	2326A69	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	2326A314	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	2326A315	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	2326A71	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	2326A316	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	2326A317	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	2326A72	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	2326A318	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	2326A319	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	2326A321	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	2326A322	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	2326A323	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	2326A324	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	2326A325	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	2326A611	000000


0.0110" to 0.2500"						0.001"	240	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	2326A619	00000000
0.0115" to 0.0605"	0.001"					50	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	2326A613	000000
0.0115" to 0.2505"	0.001"					240	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	2326A622	00000000
0.0610" to 0.2500"	0.001"					190	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	2326A615	00000000
0.0615" to 0.2505"	0.001"					190	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	2326A617	00000000
0.2510" to 0.5000"	0.001"					250	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	2326A624	00000000
0.2515" to 0.5005"	0.001"					250	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	2326A626	00000000
0.5010" to 0.6250"	0.001"					125	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	2326A628	00000000
0.5015" to 0.6255"	0.001"					125	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	2326A631	00000000
0.6260" to 0.7500"	0.001"					125	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	2326A633	00000000


0.6265" to 0.7505"	0.001"					125	2"	4	Tool Steel	-0.00004" to 0"	ASME B89.1.5	2326A635	00000000
0.7510" to 0.8320"	0.001"					82	2"	4	Tool Steel	-0.00006" to 0"	ASME B89.1.5	2326A637	00000000
0.7515" to 0.8325"	0.001"					82	2"	4	Tool Steel	-0.00006" to 0"	ASME B89.1.5	2326A639	00000000
0.8330" to 0.9160"	0.001"					84	2"	4	Tool Steel	-0.00006" to 0"	ASME B89.1.5	2326A642	00000000
0.8335" to 0.9165"	0.001"					84	2"	4	Tool Steel	-0.00006" to 0"	ASME B89.1.5	2326A644	00000000
0.9170" to 1.0000"	0.001"					84	2"	4	Tool Steel	-0.00006" to 0"	ASME B89.1.5	2326A646	00000000
0.9175" to 1.0005"	0.001"					84	2"	4	Tool Steel	-0.00006" to 0"	ASME B89.1.5	2326A648	00000000




						Class Z Gauge

						0.0110" to 0.0600"	0.001"	50	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A31	000000


						0.0110" to 0.2500"	0.001"	240	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A39	000000
						0.0115" to 0.0605"	0.001"	50	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A41	000000
						0.0115" to 0.2505"	0.001"	240	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A49	000000
						0.0610" to 0.2500"	0.001"	190	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A32	000000
						0.0615" to 0.2505"	0.001"	190	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A42	000000
						0.2510" to 0.5000"	0.001"	250	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A33	000000
						0.2515" to 0.5005"	0.001"	250	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A43	000000
						0.5010" to 0.6250"	0.001"	125	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A34	000000
						0.5015" to 0.6255"	0.001"	125	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A24	000000
						0.6260" to 0.7500"	0.001"	125	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A35	000000


						0.6265" to 0.7505"	0.001"	125	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A25	000000
						0.7510" to 0.8320"	0.001"	82	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A36	000000
						0.7515" to 0.8325"	0.001"	82	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A26	000000
						0.8330" to 0.9160"	0.001"	84	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A37	00000000
						0.8335" to 0.9165"	0.001"	84	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A27	00000000
						0.9170" to 1.0000"	0.001"	84	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A38	00000000
						0.9175" to 1.0005"	0.001"	84	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	2326A28	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	2326A65	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	2326A511	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	2326A513	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	2326A515	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	2326A517	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	2326A519	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	2326A522	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	2326A524	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	2326A526	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	2326A528	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	2326A531	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	2326A533	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	2326A211	000000


				0.0065" to 0.0605"	0.001"	55	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A212	000000
				0.0110" to 0.0600"	0.001"	50	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2327A21	00000
				0.0110" to 0.2500"	0.001"	240	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A214	000000
				0.0115" to 0.0605"	0.001"	50	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A213	00000
				0.0115" to 0.2505"	0.001"	240	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A215	000000
				0.0610" to 0.2500"	0.001"	190	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2327A22	000000
				0.0615" to 0.2505"	0.001"	190	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A216	000000
				0.2510" to 0.5000"	0.001"	250	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2327A23	000000
				0.2515" to 0.5005"	0.001"	250	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A217	000000
				0.5010" to 0.6250"	0.001"	125	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2327A24	000000


				0.5015" to 0.6255"	0.001"	125	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A218	000000
				0.6260" to 0.7500"	0.001"	125	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2327A25	000000
				0.6265" to 0.7505"	0.001"	125	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A219	000000
0.7510" to 0.8320"				0.001"	82	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A221	000000
0.7515" to 0.8325"	0.001"			82	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A222	000000
0.8330" to 0.9160"	0.001"			84	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A223	000000
0.8335" to 0.9165"	0.001"			84	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A224	000000
0.9170" to 1.0000"	0.001"			84	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A225	000000
0.9175" to 1.0005"	0.001"			84	2"	10	Black-Oxide Tool Steel	-0.0002" to 0"	ASME B89.1.5	2326A226	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	2326A411	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	2326A412	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	2326A413	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	2326A73	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	2326A414	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	2326A415	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	2326A74	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	2326A416	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	2326A417	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	2326A75	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	2326A418	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	2326A419	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	2326A421	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	2326A422	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	2326A423	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	2326A424	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	2326A425	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	21015A1	000000000


	0.0110" to 0.6250"	0.001"	615	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	21015A11	00000000
	0.0110" to 0.7500"	0.001"	740	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	21015A13	00000000
	0.0110" to 1.0000"	0.001"	990	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	21015A14	00000000
	0.0115" to 0.7505"	0.001"	740	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	21015A15	00000000
	0.0115" to 1.0005"	0.001"	990	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	21015A16	00000000
	0.0610" to 0.5005"	0.0005"	880	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	21015A17	00000000
	0.0610" to 0.7500"	0.001"	690	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	21015A12	00000000
	0.0610" to 1.0000"	0.001"	940	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	21015A18	00000000
	0.0615" to 0.7505"	0.001"	690	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	21015A19	00000000
	0.0615" to 1.0005"	0.001"	940	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	21015A41	00000000


	0.7510" to 1.0000"	0.001"	250	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	21015A42	00000000
	0.7515" to 1.0005"	0.001"	250	2"	8	Tool Steel	0" to 0.0001"	ASME B89.1.5	21015A43	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	21015A32	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	21015A34	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	21015A2	00000000


					0.0110" to 0.6250"	0.001"	615	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	21015A21	00000000
					0.0110" to 0.7500"	0.001"	740	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	21015A23	00000000
					0.0110" to 1.0000"	0.001"	990	2"	8	Tool Steel	-0.00012" to 0"	ASME B89.1.5	21015A24	00000000
					0.0115" to 0.7505"	0.001"	740	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	21015A25	00000000
					0.0115" to 1.0005"	0.001"	990	2"	8	Tool Steel	-0.00012" to 0"	ASME B89.1.5	21015A26	00000000
					0.0610" to 0.5005"	0.0005"	880	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	21015A27	00000000
					0.0610" to 0.7500"	0.001"	690	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	21015A22	00000000
					0.0610" to 1.0000"	0.001"	940	2"	8	Tool Steel	-0.00012" to 0"	ASME B89.1.5	21015A28	00000000
					0.0615" to 0.7505"	0.001"	690	2"	8	Tool Steel	-0.0001" to 0"	ASME B89.1.5	21015A29	00000000
					0.0615" to 1.0005"	0.001"	940	2"	8	Tool Steel	-0.00012" to 0"	ASME B89.1.5	21015A51	00000000


					0.7510" to 1.0000"	0.001"	250	2"	8	Tool Steel	-0.00012" to 0"	ASME B89.1.5	21015A52	00000000
					0.7515" to 1.0005"	0.001"	250	2"	8	Tool Steel	-0.00012" to 0"	ASME B89.1.5	21015A53	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	21015A31	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	21015A33	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"	2149A111	0000000	-0.00004" to 0"	2149A511	0000000


		0.0312"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A112	000000	-0.00004" to 0"	2149A512	000000
		0.0469"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A513	000000
		0.0625"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A131	000000	-0.00004" to 0"	2149A531	000000
		0.0781"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A132	000000	-0.00004" to 0"	2149A532	000000
		0.0937"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A133	000000	-0.00004" to 0"	2149A533	000000
		0.1094"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A134	000000	-0.00004" to 0"	2149A534	000000
		0.1250"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A135	000000	-0.00004" to 0"	2149A535	000000
		0.1406"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A536	000000
		0.1562"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A137	000000	-0.00004" to 0"	2149A537	000000
		0.1719"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A138	000000	-0.00004" to 0"	2149A538	000000


		0.1875"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A139	000000	-0.00004" to 0"	2149A539	000000
		0.2031"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A141	000000	-0.00004" to 0"	2149A541	000000
		0.2187"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A142	000000	-0.00004" to 0"	2149A542	000000
		0.2344"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A143	000000	-0.00004" to 0"	2149A543	000000
		0.2500"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A144	000000	-0.00004" to 0"	2149A544	000000
		0.2656"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A151	000000	-0.00004" to 0"	2149A551	000000
		0.2812"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A152	000000	-0.00004" to 0"	2149A552	000000
		0.2969"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A553	000000
		0.3125"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A154	000000	-0.00004" to 0"	2149A554	000000
		0.3281"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A555	000000


		0.3437"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A556	000000
		0.3594"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A557	000000
		0.3750"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A158	000000	-0.00004" to 0"	2149A558	000000
		0.3906"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A159	000000	-0.00004" to 0"	2149A559	000000
		0.4062"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A561	000000
		0.4219"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A162	000000	-0.00004" to 0"	2149A562	000000
		0.4375"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A163	000000	-0.00004" to 0"	2149A563	000000
		0.4531"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A564	000000
		0.4687"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A565	000000
		0.4844"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A566	000000


		0.5000"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A167	000000	-0.00004" to 0"	2149A567	000000
		0.5156"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A571	000000
		0.5312"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A172	000000	-0.00004" to 0"	2149A572	000000
		0.5469"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A573	000000
		0.5625"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A574	000000
		0.5781"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A575	000000
		0.5937"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	—	———	0	-0.00004" to 0"	2149A576	000000
		0.6250"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A178	000000	—	———	0
		0.6562"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A181	000000	—	———	0
		0.6719"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A182	000000	—	———	0


		0.7500"	0.0001"	25	2"	2	Rockwell C60	Tool Steel	ASME B89.1.5	0" to 0.00004"	2149A191	000000	—	———	0