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.
Inch—Class Z
Choose a Size | Increment | Go Gauge Tolerance | No-Go Gauge Tolerance | Lg. | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.0110" 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 0.5005" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 3/16" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
0.5010" 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 0.6255" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 17/32" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
0.6260" to 0.6355" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 17/32" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
0.6360" to 0.7505" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 21/32" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
0.7510" to 0.7605" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 7 21/32" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
0.7610" to 0.8325" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 8 1/4" | 8 | Rockwell C60 | Tool Steel | 00000000 | 000000 |
0.8330" to 0.9165" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 8 1/4" | 8 | Rockwell C60 | Tool Steel | 00000000 | 000000 |
0.9170" to 1.0005" | 0.0005" | 0" to 0.0001" | -0.0001" to 0" | 8 1/4" | 8 | Rockwell C60 | Tool Steel | 00000000 | 000000 |
Inch—Class X
Choose a Size | Increment | Go Gauge Tolerance | No-Go Gauge Tolerance | Lg. | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.0040" to 0.0250" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 5 1/4" | 4 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
0.0251" to 0.0750" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 5 1/4" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
0.0751" to 0.1800" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 5 15/32" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
0.1801" to 0.2810" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 6 1/8" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
0.2811" to 0.4060" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 6 19/32" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
0.4061" to 0.5100" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 7 3/16" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
0.5101" to 0.6350" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 7 17/32" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
0.6351" to 0.7600" | 0.0001" | 0" to 0.00004" | -0.00004" to 0" | 7 21/32" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
0.7601" to 1.0000" | 0.0001" | 0" to 0.00006" | -0.00006" to 0" | 8 1/4" | 4 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
Metric—Class Z
Choose a Size | Increment | Go Gauge Tolerance | No-Go Gauge Tolerance | Lg. | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.2200mm to 1.9000mm | 0.01mm | 0mm to 0.0025mm | -0.0025mm to 0mm | 5 1/4" | 8 | Rockwell C60 | Tool Steel | 00000000 | 000000 |
1.9100mm to 4.5600mm | 0.01mm | 0mm to 0.0025mm | -0.0025mm to 0mm | 5 15/32" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
4.5700mm to 7.1400mm | 0.01mm | 0mm to 0.0025mm | -0.0025mm to 0mm | 6 1/8" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
7.1500mm to 10.3200mm | 0.01mm | 0mm to 0.0025mm | -0.0025mm to 0mm | 6 19/32" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
10.3300mm to 12.7000mm | 0.01mm | 0mm to 0.0025mm | -0.0025mm to 0mm | 7 3/16" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
12.9700mm to 15.3000mm | 0.01mm | 0mm to 0.0025mm | -0.0025mm to 0mm | 7 17/32" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
15.3100mm to 16.2000mm | 0.01mm | 0mm to 0.0025mm | -0.0025mm to 0mm | 7 17/32" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
16.2100mm to 19.3000mm | 0.01mm | 0mm to 0.0025mm | -0.0025mm to 0mm | 7 21/32" | 8 | Rockwell C60 | Tool Steel | 00000000 | 00000 |
19.3100mm to 20.3600mm | 0.01mm | 0mm to 0.0025mm | -0.0025mm to 0mm | 7 21/32" | 8 | Rockwell C60 | Tool Steel | 00000000 | 000000 |
20.3700mm to 22.0400mm | 0.01mm | 0mm to 0.0025mm | -0.0025mm to 0mm | 8 1/4" | 8 | Rockwell C60 | Tool Steel | 00000000 | 000000 |
23.7300mm to 25.4100mm | 0.01mm | 0mm to 0.0025mm | -0.0025mm to 0mm | 8 1/4" | 8 | Rockwell C60 | Tool Steel | 00000000 | 000000 |
Metric—Class X
Choose a Size | Increment | Go Gauge Tolerance | No-Go Gauge Tolerance | Lg. | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
0.101mm to 0.381mm | 0.001mm | 0mm to 0.001mm | -0.001mm to 0mm | 5 1/4" | 4 | Rockwell C60 | Tool Steel | 0000000 | 0000000 |
0.382mm to 0.762mm | 0.001mm | 0mm to 0.001mm | -0.001mm to 0mm | 5 1/4" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
0.763mm to 1.905mm | 0.001mm | 0mm to 0.001mm | -0.001mm to 0mm | 5 1/4" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
1.906mm to 4.572mm | 0.001mm | 0mm to 0.001mm | -0.001mm to 0mm | 5 1/2" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
4.573mm to 7.137mm | 0.001mm | 0mm to 0.001mm | -0.001mm to 0mm | 6 1/8" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
7.138mm to 10.312mm | 0.001mm | 0mm to 0.001mm | -0.001mm to 0mm | 6 3/4" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
10.313mm to 12.954mm | 0.001mm | 0mm to 0.001mm | -0.001mm to 0mm | 7 1/4" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
12.955mm to 16.129mm | 0.001mm | 0mm to 0.001mm | -0.001mm to 0mm | 7 1/2" | 4 | Rockwell C60 | Tool Steel | 0000000 | 00000 |
16.130mm to 19.304mm | 0.001mm | 0mm to 0.001mm | -0.001mm to 0mm | 7 3/4" | 4 | Rockwell C60 | Tool Steel | 0000000 | 000000 |
19.305mm to 25.654mm | 0.001mm | 0mm to 0.001mm | -0.001mm to 0mm | 8 1/4" | 4 | Rockwell C60 | Tool Steel | 0000000 | 000000 |