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Product info
Non-Stop system for down the hole hammer
Robit® Non-Stop system is an advanced casing system that start to drill with a casing and then to continues beyond it without tool changes. No need to pull out the pilot bit and the drill string to replace it by a conventional down the hole bit. A single operation disconnects the pilot and the ring from the casing. The drilling can be continued free from the casing tube without losing the drilling diameter.
| Casing OD (mm) | 219,1 |
| Casing OD (in.) | 8 ⅝ |
| Casing Max Wall (mm) | 6 |
| Casing Max Wall (in.) | 0.236 |
| Ring bit ID (mm) | 186 |
| Ring bit ID (in.) | 7.323 |
| Ring bit OD (mm) | 233 |
| Ring bit OD (in.) | 9.173 |
| Pilot bit OD (mm) | 197 |
| Pilot bit OD (in.) | 7.756 |
| Hammer | 6” |
| Product number | 03-562-219-4524 |
Compatible products
DTH-RoX NS 219,1/6
Casing Extension, Down the Hole Hammer, Non-Stop
DTH-RoX NS 219,1/6
Ring, Down the Hole Hammer, Non-Stop