Subs, Adaptors & Bushings
Tube Technologies manufactures all types of subs and adapters for Blast Hole Drilling. The subs and adaptors are made from 4142 heat-treated alloys which are then hardened to 32 – 36. Rockwell provides maximum strength as subs are hardened to 32-36. Rockwell C is substantially stronger than the traditional commercial bar stock. Our extensive array of thread gages allows you to have complete and prompt customization of any sub adapter and all BECO and API thread connections are part of our range.
Made from 4142 heat-treated alloys which is then hardened to 32 – 36. Rockwell provides maximum strength as subs are hardened to 32-36. Rockwell C is substantially stronger than the traditional commercial bar stock.
| Pin Connection | Outside Diameter | Standard Length | Sub Wt | Part Number |
| 2 3/8 API Reg | 3 ½ | 18 | 45 | 35700 |
| 2 3/8 API Reg. | 4 | 18 | 60 | 35701 |
| 2 7/8 IF | 4 1/2 | 18 | 70 | 35702 |
| 3½ API Reg. | 4 1/2 | 24 | 97 | 35703 |
| 3 ½ API Reg | 5 | 24 | 122 | 35704 |
| 3 ½ Beco | 5 | 24 | 117 | 35705 |
| 3 ½ Beco | 5 ½ | 24 | 145 | 35706 |
| 4 – 4 ½ Beco | 6 1/4 | 24 | 176 | 35707 |
| 4 – 4 ½ Beco | 6 ½ | 24 | 194 | 35708 |
| 4 ½ Beco | 7 | 24 | 230 | 35709 |
| 5 ¼ Beco | 7 ½ | 18 | 270 | 35710 |
| 5 ¼ Beco | 7 5/8 | 18 | 344 | 35711 |
| 6 Beco | 8 5/8 | 18 | 434 | 35712 |
| 6 Beco | 9 1/4 | 24 | 531 | 35713 |
| 7 Beco | 9 5/8 | 24 | 628 | 35714 |
| 8 Beco | 10 3/4 | 24 | 743 | 35715 |
| 8 Beco | 12 1/4 | 24 | 1215 | 35716 |
| 10 Beco | 12 3/4 | 24 | 1308 | 35717 |
| 10 Beco | 13 3/8 | 24 | 1462 | 35718 |