Suitable for up to strong rock (50 - 100 Mpa) and for cutting through fissured rock. 200 kelly box made of heat-treated cast steel with two locking pins. Wear strips or Tungstuds wear protection on the barrel body. Fitted with Betek quick change bars. Bottom ring in Hardox HB 500.
Technical Dimensions
| D (mm) | Ø OD (mm) | Weight (kg) |
|---|---|---|
| 520 | 620/540 | 468 |
| 650 | 750/670 | 698 |
| 780 | 880/800 | 756 |
| 900 | 1000/920 | 895 |
| 980 | 1080/1000 | 986 |
| 1060 | 1180/1100 | 1421 |
| 1180 | 1300/1220 | 1200 |
| 1350 | 1500/1400 | 1350 |
| 1650 | 1800/1700 | 1880 |
| 1830 | 2000/1880 | 2060 |
