Gauge Size Gauge Size |
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Surface Smoothness (RMS) Surface Smoothness (RMS) |
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Hardness Hardness |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Material Material |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Ring Gauges for Outside Diameters
Check the outside diameter of shafts, rods, and other cylindrical objects to determine whether they’re in tolerance.
If your part can pass through a go gauge but cannot pass through a no-go gauge, it is within tolerance.
Go gauges check the maximum outside diameter.
No-go gauges check the minimum outside diameter.
For technical drawings and 3-D models, click on a part number.
| Choose a Size | Increment | Surface Smoothness (RMS), microinch | Hardness | Material | Gauge Tolerance | Each | |
Go Gauges | |||||||
|---|---|---|---|---|---|---|---|
Class Z | |||||||
| 0.1501" to 0.2400" | 0.0001" | 8 | Rockwell C60 | Tool Steel | -0.0001" to 0" | 0000000 | 0000000 |
| 0.2401" to 0.3650" | 0.0001" | 8 | Rockwell C60 | Tool Steel | -0.0001" to 0" | 0000000 | 000000 |
| 0.3651" to 0.5100" | 0.0001" | 8 | Rockwell C60 | Tool Steel | -0.0001" to 0" | 0000000 | 000000 |
| 0.5101" to 0.8250" | 0.0001" | 8 | Rockwell C60 | Tool Steel | -0.0001" to 0" | 0000000 | 000000 |
| 0.8251" to 1.1350" | 0.0001" | 8 | Rockwell C60 | Tool Steel | -0.00012" to 0" | 0000000 | 000000 |
| 1.1351" to 1.5100" | 0.0001" | 8 | Rockwell C60 | Tool Steel | -0.00012" to 0" | 0000000 | 000000 |
| 1.5101" to 2.0100" | 0.0001" | 8 | Rockwell C60 | Tool Steel | -0.00016" to 0" | 0000000 | 000000 |
| 2.0101" to 2.5100" | 0.0001" | 8 | Rockwell C60 | Tool Steel | -0.00016" to 0" | 0000000 | 000000 |
Class X | |||||||
| 0.1501" to 0.2400" | 0.0001" | 4 | Rockwell C60 | Tool Steel | -0.00004" to 0" | 0000000 | 000000 |
| 0.2401" to 0.3650" | 0.0001" | 4 | Rockwell C60 | Tool Steel | -0.00004" to 0" | 0000000 | 000000 |
| 0.3651" to 0.5100" | 0.0001" | 4 | Rockwell C60 | Tool Steel | -0.00004" to 0" | 0000000 | 000000 |
| 0.5101" to 0.8250" | 0.0001" | 4 | Rockwell C60 | Tool Steel | -0.00004" to 0" | 0000000 | 000000 |
| 0.8251" to 1.1350" | 0.0001" | 4 | Rockwell C60 | Tool Steel | -0.00006" to 0" | 0000000 | 000000 |
| 1.1351" to 1.5100" | 0.0001" | 4 | Rockwell C60 | Tool Steel | -0.00006" to 0" | 0000000 | 000000 |
| 1.5101" to 2.0100" | 0.0001" | 4 | Rockwell C60 | Tool Steel | -0.00008" to 0" | 0000000 | 000000 |
| 2.0101" to 2.5100" | 0.0001" | 4 | Rockwell C60 | Tool Steel | -0.00008" to 0" | 0000000 | 000000 |
No-Go Gauges | |||||||
Class Z | |||||||
| 0.1501" to 0.2400" | 0.0001" | 8 | Rockwell C60 | Tool Steel | 0" to 0.0001" | 0000000 | 000000 |
| 0.2401" to 0.3650" | 0.0001" | 8 | Rockwell C60 | Tool Steel | 0" to 0.0001" | 0000000 | 000000 |
| 0.3651" to 0.5100" | 0.0001" | 8 | Rockwell C60 | Tool Steel | 0" to 0.0001" | 0000000 | 000000 |
| 0.5101" to 0.8250" | 0.0001" | 8 | Rockwell C60 | Tool Steel | 0" to 0.0001" | 0000000 | 000000 |
| 0.8251" to 1.1350" | 0.0001" | 8 | Rockwell C60 | Tool Steel | 0" to 0.00012" | 0000000 | 000000 |
| 1.1351" to 1.5100" | 0.0001" | 8 | Rockwell C60 | Tool Steel | 0" to 0.00012" | 0000000 | 000000 |
| 1.5101" to 2.0100" | 0.0001" | 8 | Rockwell C60 | Tool Steel | 0" to 0.00016" | 0000000 | 000000 |
| 2.0101" to 2.5100" | 0.0001" | 8 | Rockwell C60 | Tool Steel | 0" to 0.00016" | 0000000 | 000000 |
Class X | |||||||
| 0.1501" to 0.2400" | 0.0001" | 4 | Rockwell C60 | Tool Steel | 0" to 0.00004" | 0000000 | 000000 |
| 0.2401" to 0.3650" | 0.0001" | 4 | Rockwell C60 | Tool Steel | 0" to 0.00004" | 0000000 | 000000 |
| 0.3651" to 0.5100" | 0.0001" | 4 | Rockwell C60 | Tool Steel | 0" to 0.00004" | 0000000 | 000000 |
| 0.5101" to 0.8250" | 0.0001" | 4 | Rockwell C60 | Tool Steel | 0" to 0.00004" | 0000000 | 000000 |
| 0.8251" to 1.1350" | 0.0001" | 4 | Rockwell C60 | Tool Steel | 0" to 0.00006" | 0000000 | 000000 |
| 1.1351" to 1.5100" | 0.0001" | 4 | Rockwell C60 | Tool Steel | 0" to 0.00006" | 0000000 | 000000 |
| 1.5101" to 2.0100" | 0.0001" | 4 | Rockwell C60 | Tool Steel | 0" to 0.00008" | 0000000 | 000000 |
| 2.0101" to 2.5100" | 0.0001" | 4 | Rockwell C60 | Tool Steel | 0" to 0.00008" | 0000000 | 000000 |