Class ZZ Plug Gauges | McMaster-Carr

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System of Measurement

Plug Gauge Size

Size-Checking Gauge Class

Gauge Measurement Type

No-Go

Finish

Black Oxide

Length

Certificate Type

Accuracy Certificate Traceable to NIST

Surface Smoothness, RMS

Increment

Material

Specifications Met

REACH

Performance

RoHS

Export Control Classification Number (ECCN)

EAR99

Hardness

Rockwell C60

DFARS Specialty Metals

Number of Pieces

Container Type

82 Products

Wear-Indicating Plug Gauges

A black-oxide treatment on these gauges shows wear patterns so you can tell when you need to calibrate or replace the gauge. They help you measure hole sizes and depths, check hole location and distance, and set micrometers. All come with an accuracy certificate traceable to NIST that states they’ve passed a test for accuracy.

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

Go Gauge—Go gauges check the minimum hole diameter.

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

							Go Gauge			No-Go Gauge
	Choose a Plug Gauge Size	Lg.	Surface Smoothness, RMS, μin	Hardness	Material	Specs. Met	Plug Gauge Size Tolerance		Each	Plug Gauge Size Tolerance		Each
Class ZZ Gauge



		0.0110" to 0.0605"	2"	10	Rockwell C60	Black-Oxide Tool Steel	ASME B89.1.5	0" to 0.0002"	00000000	00000	-0.0002" to 0"	00000000	00000


		0.0610" to 0.5005"	2"	10	Rockwell C60	Black-Oxide Tool Steel	ASME B89.1.5	0" to 0.0002"	00000000	0000	-0.0002" to 0"	00000000	0000
		0.5010" to 0.6255"	2"	10	Rockwell C60	Black-Oxide Tool Steel	ASME B89.1.5	0" to 0.0002"	00000000	0000	-0.0002" to 0"	00000000	0000
		0.6260" to 0.7505"	2"	10	Rockwell C60	Black-Oxide Tool Steel	ASME B89.1.5	0" to 0.0002"	00000000	0000	-0.0002" to 0"	00000000	0000

Plug Gauge Sets

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 Gauge—Go gauges check the minimum hole diameter.

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

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 Gauge







				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	0000000


				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 Gauge







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