These frame style setting standards are designed to preset CDG Series gages for accurate inspection of API threaded connections. These standards consist of a rigid, non-adjustable steel block precision machined to proper size to tolerances of ±.0003”.


| Thread Type | Connection | Pin Standard | Box Standard |
| LTC | 4½” 8R LTC | CDGF-412L-P | CDGF-412L-B |
| 5” 8R LTC | CDGF-5L-P | CDGF-5L-B | |
| 5½” 8R LTC | CDGF-512L-P | CDGF-512L-B | |
| 6⅝” 8R LTC | CDGF-658L-P | CDGF-658L-B | |
| 7” 8R LTC | CDGF-7L-P | CDGF-7L-B | |
| 7⅝” 8R LTC | CDGF-758L-P | CDGF-758L-B | |
| 8⅝” 8R LTC | CDGF-858L-P | CDGF-858L-B | |
| 9⅝” 8R LTC | CDGF-958L-P | CDGF-958L-B>P110 or CDGF-958L-B<P110 | |
| 20” 8R LTC | CDGF-20L-P | CDGF-20L-B>JK55 or CDGF-20L-B<JK55 |


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