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 | 0000 |
| 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 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 | Each | |
| 0.0050" to 0.0755" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 5 1/4" | 8 | Rockwell C60 | Tool Steel | 00000000 | 000000 |
| 0.0760" to 0.1805" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 5 15/32" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
| 0.1810" to 0.2815" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 6 1/8" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
| 0.2820" to 0.4065" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 6 19/32" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
| 0.4070" to 0.5105" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 3/16" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
| 0.5110" to 0.6355" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 3/16" | 8 | Rockwell C60 | Tool Steel | 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 | 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 | 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 | 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 | 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 | 00000000 | 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 | 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 | 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 | 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 | 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 | 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 | 00000000 | 00000 |
Plug Gauge Sets
Take precision go/no-go measurements of hole sizes and depths, check hole location and distance, and set micrometers. These sets have 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.
| Size | Increment | No. of Pieces | Lg. | Surface Smoothness (RMS), microinch | Material | Plug Gauge Tolerance | Each | |
Go Gauges | ||||||||
|---|---|---|---|---|---|---|---|---|
With Case | ||||||||
Class Z | ||||||||
| 0.0110" to 0.0600" | 0.001" | 50 | 2" | 8 | Tool Steel | 0" to 0.0001" | 0000000 | 0000000 |
| 0.0110" to 0.2500" | 0.001" | 240 | 2" | 8 | Tool Steel | 0" to 0.0001" | 0000000 | 000000 |
| 0.0115" to 0.0605" | 0.001" | 50 | 2" | 8 | Tool Steel | 0" to 0.0001" | 0000000 | 000000 |
| 0.0115" to 0.2505" | 0.001" | 240 | 2" | 8 | Tool Steel | 0" to 0.0001" | 0000000 | 000000 |
| 0.0610" to 0.2500" | 0.001" | 190 | 2" | 8 | Tool Steel | 0" to 0.0001" | 0000000 | 000000 |
| 0.0615" to 0.2505" | 0.001" | 190 | 2" | 8 | Tool Steel | 0" to 0.0001" | 0000000 | 000000 |
| 0.2510" to 0.5000" | 0.001" | 250 | 2" | 8 | Tool Steel | 0" to 0.0001" | 0000000 | 000000 |
| 0.2515" to 0.5005" | 0.001" | 250 | 2" | 8 | Tool Steel | 0" to 0.0001" | 0000000 | 000000 |
| 0.5010" to 0.6250" | 0.001" | 125 | 2" | 8 | Tool Steel | 0" to 0.0001" | 0000000 | 000000 |
| 0.6260" to 0.7500" | 0.001" | 125 | 2" | 8 | Tool Steel | 0" to 0.0001" | 0000000 | 000000 |
| 0.2200mm to 1.5000mm | 0.02mm | 65 | 2" | 8 | Tool Steel | 0mm to 0.0025mm | 0000000 | 000000 |
With Cabinet | ||||||||
Class Z | ||||||||
| 0.0110" to 0.6250" | 0.001" | 615 | 2" | 8 | Tool Steel | 0" to 0.0001" | 00000000 | 00000000 |
| 0.0610" to 0.7500" | 0.001" | 690 | 2" | 8 | Tool Steel | 0" to 0.0001" | 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" | 0000000 | 000000 |
| 0.0110" to 0.2500" | 0.001" | 240 | 2" | 8 | Tool Steel | -0.0001" to 0" | 0000000 | 000000 |
| 0.0115" to 0.0605" | 0.001" | 50 | 2" | 8 | Tool Steel | -0.0001" to 0" | 0000000 | 000000 |
| 0.0115" to 0.2505" | 0.001" | 240 | 2" | 8 | Tool Steel | -0.0001" to 0" | 0000000 | 000000 |
| 0.0610" to 0.2500" | 0.001" | 190 | 2" | 8 | Tool Steel | -0.0001" to 0" | 0000000 | 000000 |
| 0.0615" to 0.2505" | 0.001" | 190 | 2" | 8 | Tool Steel | -0.0001" to 0" | 0000000 | 000000 |
| 0.2510" to 0.5000" | 0.001" | 250 | 2" | 8 | Tool Steel | -0.0001" to 0" | 0000000 | 000000 |
| 0.2515" to 0.5005" | 0.001" | 250 | 2" | 8 | Tool Steel | -0.0001" to 0" | 0000000 | 000000 |
| 0.5010" to 0.6250" | 0.001" | 125 | 2" | 8 | Tool Steel | -0.0001" to 0" | 0000000 | 000000 |
| 0.6260" to 0.7500" | 0.001" | 125 | 2" | 8 | Tool Steel | -0.0001" to 0" | 0000000 | 000000 |
| 0.2200mm to 1.5000mm | 0.02mm | 65 | 2" | 8 | Tool Steel | -0.0025mm to 0mm | 0000000 | 000000 |
With Cabinet | ||||||||
Class Z | ||||||||
| 0.0110" to 0.6250" | 0.001" | 615 | 2" | 8 | Tool Steel | -0.0001" to 0" | 00000000 | 00000000 |
| 0.0610" to 0.7500" | 0.001" | 690 | 2" | 8 | Tool Steel | -0.0001" to 0" | 00000000 | 00000000 |