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Master Ring Gauges
Set inside micrometers, dial bore gauges, and other precision tools.
| Choose a Size | Increment | Gauge Tolerance | Surface Smoothness (RMS), microinch | Hardness | Material | Each | |
Class Z | |||||||
|---|---|---|---|---|---|---|---|
| 0.1501" to 0.2400" | 0.0001" | -0.00005" to 0.00005" | 8 | Rockwell C60 | Tool Steel | 2266A71 | 0000000 |
| 0.2401" to 0.3650" | 0.0001" | -0.00005" to 0.00005" | 8 | Rockwell C60 | Tool Steel | 2266A72 | 000000 |
| 0.3650" to 0.5100" | 0.0001" | -0.00005" to 0.00005" | 8 | Rockwell C60 | Tool Steel | 2266A74 | 000000 |
| 0.5101" to 0.8250" | 0.0001" | -0.00005" to 0.00005" | 8 | Rockwell C60 | Tool Steel | 2266A75 | 000000 |
| 0.8251" to 1.1350" | 0.0001" | -0.00006" to 0.00006" | 8 | Rockwell C60 | Tool Steel | 2266A76 | 000000 |
| 1.1351" to 1.5100" | 0.0001" | -0.00006" to 0.00006" | 8 | Rockwell C60 | Tool Steel | 2266A77 | 000000 |
| 1.5101" to 2.0100" | 0.0001" | -0.00008" to 0.00008" | 8 | Rockwell C60 | Tool Steel | 2266A78 | 000000 |
| 2.0101" to 2.5100" | 0.0001" | -0.00008" to 0.00008" | 8 | Rockwell C60 | Tool Steel | 2266A79 | 000000 |
Class X | |||||||
| 0.1501" to 0.2400" | 0.0001" | -0.00002" to 0.00002" | 4 | Rockwell C60 | Tool Steel | 2266A41 | 000000 |
| 0.2401" to 0.3650" | 0.0001" | -0.00002" to 0.00002" | 4 | Rockwell C60 | Tool Steel | 2266A42 | 000000 |
| 0.3650" to 0.5100" | 0.0001" | -0.00002" to 0.00002" | 4 | Rockwell C60 | Tool Steel | 2266A44 | 000000 |
| 0.5101" to 0.8250" | 0.0001" | -0.00002" to 0.00002" | 4 | Rockwell C60 | Tool Steel | 2266A45 | 000000 |
| 0.8251" to 1.1350" | 0.0001" | -0.00003" to 0.00003" | 4 | Rockwell C60 | Tool Steel | 2266A46 | 000000 |
| 1.1351" to 1.5100" | 0.0001" | -0.00003" to 0.00003" | 4 | Rockwell C60 | Tool Steel | 2266A47 | 000000 |
| 1.5101" to 2.0100" | 0.0001" | -0.00004" to 0.00004" | 4 | Rockwell C60 | Tool Steel | 2266A48 | 000000 |
| 2.0101" to 2.5100" | 0.0001" | -0.00004" to 0.00004" | 4 | Rockwell C60 | Tool Steel | 2266A49 | 000000 |