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Export Control Classification Number (ECCN)
DFARS Specialty Metals
Ring Gauge Holders
Often used with go and no-go ring gauges, these holders keep two ring gauges still for quick, repeat measuring. Since they're a stable platform, you can measure your shafts, rods, and other cylindrical parts from a consistent angle every time. Loosen the socket head screw to separate the two-piece construction and slot your rings in. Made of black anodized aluminum, they stand up to the friction from switching out rings. They also resist corrosion.
| For Ring Gauge Size | Overall Lg. | Material | Each | |
| 0.050"-0.150" 1.270 mm-3.810 mm | 2 7/8" | Black Anodized Aluminum | 0000000 | 0000000 |
| 0.150"-0.240" 3.810 mm-6.096 mm | 2 7/8" | Black Anodized Aluminum | 0000000 | 000000 |
| 0.240"-0.365" 6.096 mm-9.271 mm | 3 1/2" | Black Anodized Aluminum | 0000000 | 000000 |
| 0.365"-0.510" 9.271 mm-12.954 mm | 4 1/4" | Black Anodized Aluminum | 0000000 | 000000 |
| 0.510"-0.825" 12.954 mm-20.955 mm | 5" | Black Anodized Aluminum | 0000000 | 000000 |
| 0.825"-1.135" 20.955 mm-28.829 mm | 5 3/4" | Black Anodized Aluminum | 0000000 | 000000 |
| 1.135"-1.510" 28.829 mm-38.354 mm | 6 1/2" | Black Anodized Aluminum | 0000000 | 000000 |
Threaded Ring Gauge Holders
Join two ring gauges with different sizes to quickly check if threads are within tolerance. Secure your gauges to these holders with the included fasteners.
Inch
| For Thread Dia.  | Overall Lg. | Material | Color | Each | |
| No. 0, No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 8, No. 10, No. 12 | 1" | Aluminum | Black | 0000000 | 000000 |
| 1/4", 5/16" | 1 3/8" | Aluminum | Black | 0000000 | 00000 |
| 3/8", 7/16", 1/2" | 1 3/4" | Aluminum | Black | 0000000 | 00000 |
| 9/16", 5/8", 11/16", 3/4" | 2 1/4" | Aluminum | Black | 0000000 | 00000 |
| 7/8", 1", 1 1/8" | 2 5/8" | Aluminum | Black | 0000000 | 00000 |
| 1 1/4", 1 3/8", 1 1/2" | 3 1/4" | Aluminum | Black | 0000000 | 00000 |