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 |
Class ZZ | ||||||||
| 1.3000mm to 4.9800mm | 0.02mm | 185 | 2" | 10 | Tool Steel | 0mm to 0.005mm | 0000000 | 000000 |
| 5.0000mm to 9.9800mm | 0.02mm | 250 | 2" | 10 | Tool Steel | 0mm to 0.005mm | 0000000 | 000000 |
| 10.0000mm to 13.9800mm | 0.02mm | 200 | 2" | 10 | Tool Steel | 0mm to 0.005mm | 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 |
Class ZZ | ||||||||
| 1.3000mm to 4.9800mm | 0.02mm | 185 | 2" | 10 | Tool Steel | -0.005mm to 0mm | 0000000 | 000000 |
| 5.0000mm to 9.9800mm | 0.02mm | 250 | 2" | 10 | Tool Steel | -0.005mm to 0mm | 0000000 | 000000 |
| 10.0000mm to 13.9800mm | 0.02mm | 200 | 2" | 10 | Tool Steel | -0.005mm 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 |
Wear-Recognition Plug Gauge Sets
To indicate when you need to calibrate or replace the gauges in these sets, gauges have a black-oxide treatment that shows wear patterns. These sets are used to 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.
| Increment | No. of Pieces | Lg. | Surface Smoothness (RMS), microinch | Hardness | Material | Plug Gauge Tolerance | Plug Gauge Size | Each | ||
Go Gauges | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Class ZZ | ||||||||||
| 0.001" | 50 | 2" | 10 | Rockwell C60 | Black Oxide Tool Steel | 0" to 0.0002" | 0.0110" | 0.0600" | 0000000 | 000000 |
| 0.001" | 190 | 2" | 10 | Rockwell C60 | Black Oxide Tool Steel | 0" to 0.0002" | 0.0610" | 0.2500" | 0000000 | 000000 |
No-Go Gauges | ||||||||||
Class ZZ | ||||||||||
| 0.001" | 50 | 2" | 10 | Rockwell C60 | Black Oxide Tool Steel | -0.0002" to 0" | 0.0110" | 0.0600" | 0000000 | 00000 |
| 0.001" | 190 | 2" | 10 | Rockwell C60 | Black Oxide Tool Steel | -0.0002" to 0" | 0.0610" | 0.2500" | 0000000 | 000000 |
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.
Made of tool steel, these gauges are strong and hard, so they won’t wear down easily. 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 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.
| Plug Gauge Size | Increment | No. of Pieces | Lg. | Surface Smoothness (RMS), microinch | Hardness | Material | Specifications Met | Plug Gauge Tolerance | Each | |
Go Gauges | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Class X | ||||||||||
| 0.0156" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 0000000 |
| 0.0312" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.0625" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.0781" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.0937" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.1094" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.1250" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.1562" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.1719" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.1875" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.2031" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.2187" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.2344" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.2500" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.2656" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.2812" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.3125" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.3750" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.3906" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.4219" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.4375" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.5000" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.5312" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.6250" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.6562" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.6719" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
| 0.7500" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | 0" to 0.00004" | 00000000 | 000000 |
No-Go Gauges | ||||||||||
Class X | ||||||||||
| 0.0156" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.0312" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.0469" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.0625" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.0781" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.0937" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.1094" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.1250" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.1406" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.1562" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.1719" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.1875" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.2031" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.2187" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.2344" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.2500" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.2656" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.2812" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.2969" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.3125" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.3281" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.3437" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.3594" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.3750" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.3906" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.4062" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.4219" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.4375" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.4531" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.4687" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.4844" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.5000" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.5156" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.5312" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.5469" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.5625" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.5781" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |
| 0.5937" | 0.0001" | 25 | 2" | 2 | Rockwell C60 | Tool Steel | ASME B89.1.5 | -0.00004" to 0" | 00000000 | 000000 |