Crossover Subs

JA Oilfield Rotary Subs are made from 4145 H modified quenched and tempered material to API specifications, and carry the API monogram. All connections are cold rolled saver sub and kemplated and furnished with pressed steel thread protectors.

HOW TO ORDER

1. Type of Kelly of sub required
2. Length – Overall
3. Largest diameter required
4. ID required
5. Size and Type of upper and lower connections, indicate pin or box
6. On reduced section subs – indicate both OD’s required
7. On lift subs – indicate bottleneck w/18” tapered shoulders or wafer top
8. On kelly saver subs – indicate whether or not rubber sleeve is required