Stabilizer / blade coupling
The stabilizers and blade couplings distributed by PROMAFORSOVEMA are used with down-the-hole hammers to centre the bit, limit deviation and optimise drilling progress. Available for all standard thread types, they ensure precise guidance of the drill string. Permanently in stock at our branches for immediate availability.
Stabilizer / blade coupling dimensions
| Thread | A | Ø | B | C | D |
|---|---|---|---|---|---|
| 2 3/8 REGULAR | 76 | 40 | 30 | 30 | — |
| 2 3/8 IF | 90 | 40 | 30 | 40 | — |
| 2 7/8 REGULAR | 90 | 40 | 30 | 30 | — |
| 2 7/8 IF | 101 | 40 | 30 | 54 | — |
| 3 1/2 REGULAR | 114 | 40 | 30 | 40 | — |
| 3 1/2 IF | 127 | 40 | 30 | 60 | — |
| 4 1/2 REGULAR | 140 | 40 | 40 | 60 | — |
Need stabilizers for your drilling?
Contact one of our 4 branches throughout France for a quote, to check availability or for technical advice on selecting the stabilizer suited to your down-the-hole hammer.
