Jinzhou City Shitan Machinery Equipment CO. LTD.
Jinzhou City Shitan Machinery Equipment CO. LTD.
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78MM PDC Concave Three Blade Wing Drag Drilling Bit For Geothermal Well Drilling
Brief introduction
PDC concave drill bit is composed of PDC cutters and matrix body. With higher strength tungsten carbide body, the bit has better anti-erosive and toughness. The reliability and drilling efficiency is also improved by choosing premium PDC cutters.
Suitable formation:
Medium-hard to hard, solid hard rock formations
Application:
Mainly used to drilling water well, geothermal well, degassing hole, drain hole, and grouting hole of coal mine, oil and gas drilling.
| Size(mm) | Cutting Wings | Water Hole | Thread | |||
| Dia. | Height | Pillar | Blade | Quantity | Dia.(mm) | |
| 56 | 115 | 2 | 3 | 4 | 6--8 |
Square / Taper / Lock |
| 60 | 115 | 2 | 3 | 4 | 6--8 | |
| 65 | 115 | 2 | 3 | 4--5 | 6--8 | |
| 75 | 125 | 2 | 3--4 | 4--6 | 6--10 | |
| 78 | 128 | 2 | 3--4 | 4--6 | 6--10 | |
| 85 | 128 | 2 | 3--4 | 4--6 | 8--12 | |
| 94 | 128 | 2 | 3--4 | 4--8 | 8--12 | |
| 113 | 135 | 3 | 3--4 | 6--8 | 8--12 | |
| 133 | 135 | 3 | 3--4 | 6--8 | 8--12 | |
