Class Z Go Plug Gauges

Use these Class Z go gauges to check the minimum hole diameter. Also known as pin gauges, they help you measure hole size and depth, check hole location and distance, and set micrometers. All come with a certificate of accuracy 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.
For technical drawings and 3-D models, click on a part number.
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.0110" to 0.0605" | 0.0005" | 0" to 0.0001" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 00000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.0610" to 0.2405" | 0.0005" | 0" to 0.0001" | 2" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.2410" to 0.5005" | 0.0005" | 0" to 0.0001" | 2" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.5010" to 0.6255" | 0.0005" | 0" to 0.0001" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 00000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.6260" to 0.7505" | 0.0005" | 0" to 0.0001" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 000000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.7510" to 0.8325" | 0.0005" | 0" to 0.0001" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 000000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.8330" to 0.9165" | 0.0005" | 0" to 0.0001" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 000000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.9170" to 1.0005" | 0.0005" | 0" to 0.0001" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 000000 |
Class Z No-Go Plug Gauges

These Class Z no-go gauges help you check the maximum hole diameter. Commonly known as pin gauges, use them to measure hole size and depth, check hole location and distance, and set micrometers. All come with a certificate of accuracy traceable to NIST that states they've passed a test for accuracy.
If a no-go gauge is unable to enter the hole and a go gauge can, the hole is within tolerance.
For technical drawings and 3-D models, click on a part number.
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.0110" to 0.0605" | 0.0005" | -0.0001" to 0" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 00000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.0610" to 0.2500" | 0.0005" | -0.0001" to 0" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 00000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.2505" to 0.5005" | 0.0005" | -0.0001" to 0" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 00000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.5010" to 0.6255" | 0.0005" | -0.0001" to 0" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 00000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.6260" to 0.7505" | 0.0005" | -0.0001" to 0" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 000000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.7510" to 0.8325" | 0.0005" | -0.0001" to 0" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 000000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.8330" to 0.9165" | 0.0005" | -0.0001" to 0" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 000000 |
Choose a Plug Gauge Size | Increment | Plug Gauge Tolerance | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.9170" to 1.0005" | 0.0005" | -0.0001" to 0" | 2" | 8 | Rockwell C60 | Tool Steel | 000000000 | 000000 |
Metric Class Z Plug Gauges

These metric Class Z plug gauges are used for precision go/no-go measuring of hole sizes and depths, checking hole location and distance, and setting micrometers. They’re also known as pin gauges. All come with a certificate of accuracy 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 gauges check the minimum hole diameter.
No-go gauges check the maximum hole diameter.
For technical drawings and 3-D models, click on a part number.
Choose a Plug Gauge Size | Increment | Length | Surface Smoothness (RMS), microinch | Hardness | Material | Plug Gauge Tolerance | Each | |
Go Gauge | ||||||||
---|---|---|---|---|---|---|---|---|
0.22 mm to 1.51 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | 0 mm to 0.0025 mm | 000000 | 00000 |
1.52 mm to 12.71 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | 0 mm to 0.0025 mm | 000000 | 0000 |
12.72 mm to 15.31 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | 0 mm to 0.0025 mm | 000000 | 0000 |
15.32 mm to 17.81 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | 0 mm to 0.0025 mm | 000000 | 00000 |
17.82 mm to 20.37 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | 0 mm to 0.0025 mm | 000000 | 00000 |
20.38 mm to 22.05 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | 0 mm to 0.0025 mm | 000000 | 00000 |
22.06 mm to 23.73 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | 0 mm to 0.0025 mm | 000000 | 00000 |
23.74 mm to 25.41 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | 0 mm to 0.0025 mm | 000000 | 00000 |
No-Go Gauge | ||||||||
0.22 mm to 1.51 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | -0.0025 mm to 0 mm | 000000 | 00000 |
1.52 mm to 12.71 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | -0.0025 mm to 0 mm | 0000000 | 0000 |
12.72 mm to 15.31 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | -0.0025 mm to 0 mm | 0000000 | 0000 |
15.32 mm to 17.81 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | -0.0025 mm to 0 mm | 0000000 | 00000 |
17.82 mm to 20.37 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | -0.0025 mm to 0 mm | 0000000 | 00000 |
20.38 mm to 22.05 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | -0.0025 mm to 0 mm | 0000000 | 00000 |
22.06 mm to 23.73 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | -0.0025 mm to 0 mm | 0000000 | 00000 |
23.74 mm to 25.41 mm | 0.01 mm | 2" | 8 | Rockwell C60 | Tool Steel | -0.0025 mm to 0 mm | 0000000 | 00000 |
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. Go gauges check the minimum hole diameter. No-go gauges check the maximum hole diameter.
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. Class Z gauges are the most common. You'll often find them used on shop floors.
Plug Gauge Size | Increment | No. of Pieces | Lg. | Surface Smoothness (RMS), microinch | Material | Plug Gauge Tolerance | Specifications Met | Each | |
Go Gauges | |||||||||
---|---|---|---|---|---|---|---|---|---|
With Case | |||||||||
Class Z | |||||||||
0.0110" to 0.0600" | 0.001" | 50 | 2" | 8 | Tool Steel | 0" to 0.0001" | ASME B89.1.5 | 0000000 | 0000000 |
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 | 000000 |
0.8335" to 0.9165" | 0.001" | 84 | 2" | 8 | Tool Steel | 0" to 0.0001" | ASME B89.1.5 | 0000000 | 000000 |
0.9170" to 1.0000" | 0.001" | 84 | 2" | 8 | Tool Steel | 0" to 0.0001" | ASME B89.1.5 | 0000000 | 000000 |
0.9175" to 1.0005" | 0.001" | 84 | 2" | 8 | Tool Steel | 0" to 0.0001" | ASME B89.1.5 | 0000000 | 000000 |
0.2200mm to 1.5000mm | 0.02mm | 65 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 0000000 | 000000 |
0.2300mm to 1.5100mm | 0.02mm | 65 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 00000000 | 000000 |
1.5200mm to 7.7000mm | 0.02mm | 310 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 00000000 | 000000 |
1.5300mm to 7.7100mm | 0.02mm | 310 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 00000000 | 000000 |
7.7200mm to 12.7000mm | 0.02mm | 250 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 00000000 | 000000 |
7.7300mm to 12.7100mm | 0.02mm | 250 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 00000000 | 000000 |
12.7200mm to 15.3000mm | 0.02mm | 130 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 00000000 | 000000 |
12.7300mm to 15.3100mm | 0.02mm | 130 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 00000000 | 000000 |
15.3200mm to 17.8000mm | 0.02mm | 125 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 00000000 | 000000 |
15.3300mm to 17.8100mm | 0.02mm | 125 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 00000000 | 000000 |
17.8200mm to 20.3600mm | 0.02mm | 128 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 00000000 | 000000 |
17.8300mm to 20.3700mm | 0.02mm | 128 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 00000000 | 000000 |
With Cabinet | |||||||||
Class Z | |||||||||
0.0110" to 0.5005" | 0.0005" | 980 | 2" | 8 | Tool Steel | 0" to 0.0001" | ASME B89.1.5 | 0000000 | 00000000 |
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 |
1.5200mm to 17.8000mm | 0.02mm | 815 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 00000000 | 00000000 |
1.5300mm to 17.8100mm | 0.02mm | 815 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | ASME B89.1.5 | 00000000 | 00000000 |
No-Go Gauges | |||||||||
With Case | |||||||||
Class Z | |||||||||
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 | 000000 |
0.8335" to 0.9165" | 0.001" | 84 | 2" | 8 | Tool Steel | -0.0001" to 0" | ASME B89.1.5 | 0000000 | 000000 |
0.9170" to 1.0000" | 0.001" | 84 | 2" | 8 | Tool Steel | -0.0001" to 0" | ASME B89.1.5 | 0000000 | 000000 |
0.9175" to 1.0005" | 0.001" | 84 | 2" | 8 | Tool Steel | -0.0001" to 0" | ASME B89.1.5 | 0000000 | 000000 |
0.2200mm to 1.5000mm | 0.02mm | 65 | 2" | 8 | Tool Steel | -0.0025mm to 0mm | ASME B89.1.5 | 0000000 | 000000 |
0.2300mm to 1.5100mm | 0.02mm | 65 | 2" | 8 | Tool Steel | -0.0025mm to 0mm | ASME B89.1.5 | 00000000 | 000000 |
1.5200mm to 7.7000mm | 0.02mm | 310 | 2" | 8 | Tool Steel | -0.0025mm to 0mm | ASME B89.1.5 | 00000000 | 000000 |
1.5300mm to 7.7100mm | 0.02mm | 310 | 2" | 8 | Tool Steel | -0.0025mm to 0mm | ASME B89.1.5 | 00000000 | 000000 |
7.7200mm to 12.7000mm | 0.02mm | 250 | 2" | 8 | Tool Steel | -0.0025mm to 0mm | ASME B89.1.5 | 00000000 | 000000 |
7.7300mm to 12.7100mm | 0.02mm | 250 | 2" | 8 | Tool Steel | -0.0025mm to 0mm | ASME B89.1.5 | 00000000 | 000000 |
12.7200mm to 15.3000mm | 0.02mm | 130 | 2" | 8 | Tool Steel | -0.0025mm to 0mm | ASME B89.1.5 | 00000000 | 000000 |
12.7300mm to 15.3100mm | 0.02mm | 130 | 2" | 8 | Tool Steel | -0.0025mm to 0mm | ASME B89.1.5 | 00000000 | 000000 |
15.3200mm to 17.8000mm | 0.02mm | 125 | 2" | 8 | Tool Steel | -0.0025mm to 0mm | ASME B89.1.5 | 00000000 | 000000 |
15.3300mm to 17.8100mm | 0.02mm | 125 | 2" | 8 | Tool Steel | -0.0025mm to 0mm | ASME B89.1.5 | 00000000 | 000000 |
17.8200mm to 20.3600mm | 0.02mm | 128 | 2" | 8 | Tool Steel | -0.0025mm to 0mm | ASME B89.1.5 | 00000000 | 000000 |
17.8300mm to 20.3700mm | 0.02mm | 128 | 2" | 8 | Tool Steel | -0.0025mm to 0mm | ASME B89.1.5 | 00000000 | 000000 |
With Cabinet | |||||||||
Class Z | |||||||||
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 |
1.5200mm to 17.8000mm | 0.02mm | 815 | 2" | 8 | Tool Steel | -0.00254mm to 0mm | ASME B89.1.5 | 00000000 | 00000000 |
1.5300mm to 17.8100mm | 0.02mm | 815 | 2" | 8 | Tool Steel | -0.00254mm to 0mm | ASME B89.1.5 | 00000000 | 00000000 |
Plug Gauges with Handle

Take go and no-go measurements with the same tool. These gauges have a go gauge on one end, a no-go gauge on the other end, and a handle with bushings. They are used for precision go/no-go measuring of hole sizes and depths, checking hole location and distance, and setting micrometers. All come with a certificate of accuracy traceable to NIST.
Check the minimum hole diameter with the go gauge end, and check the maximum hole diameter with the no-go gauge end. If the go gauge enters the hole and the no-go gauge is unable to enter, the hole is within tolerance.
For technical drawings and 3-D models, click on a part number.
Choose a Plug Gauge Size | Increment | Go Plug Gauge Tolerance | No-Go Plug Gauge Size Tolerance | Lg. | Surface Smoothness (RMS), microinch | Hardness | Material | Specifications Met | Each | |
0.0050" to 0.0755" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 5 1/4" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 000000000 | 000000 |
0.0760" to 0.1805" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 5 15/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 000000000 | 00000 |
0.1810" to 0.2815" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 6 1/8" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 000000000 | 00000 |
0.2820" to 0.4065" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 6 19/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 000000000 | 00000 |
0.4070" to 0.5105" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 3/16" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 000000000 | 00000 |
0.5110" to 0.6355" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 3/16" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
0.6360" to 0.7605" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 17/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
0.7610" to 1.0150" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 17/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
Choose a Plug Gauge Size | Increment | Go Plug Gauge Tolerance | No-Go Plug Gauge Size Tolerance | Lg. | Surface Smoothness (RMS), microinch | Hardness | Material | Specifications Met | Each | |
0.2200 mm to 1.9100 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 5 1/4" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 000000 |
1.9200 mm to 4.5700 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 5 15/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 000000000 | 00000 |
4.5800 mm to 7.1400 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 6 1/8" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
7.1500 mm to 10.3100 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 6 19/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
10.3200 mm to 12.9500 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 7 3/16" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
12.9600 mm to 16.1300 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 7 17/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
16.1400 mm to 19.3000 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 7 17/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |
19.3100 mm to 25.6500 mm | 0.01 mm | 0 mm to 0.0025 mm | -0.0025 mm to 0 mm | 7 21/32" | 8 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 00000000 | 00000 |