Active Member
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[China]
Address: No. 3 Xishi Road, Shitangwan, Huishan District, Wuxi City,Jiangsu Province
Contact name:Wang
Wuxi Shifeng Geology and Mineral Drilling Tools Co., Ltd. |
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High Precision Drill Bit For Granite And Marble Long Durability Professional
Impregnated Diamond Core Bit is made with high quality synthetic diamonds, mixed evenly through a metal alloy matrix. Using hierarchical mole technology, to reduce the contact area of diamond bit matrix and the labial surface of the rock surface, and improve the drilling speed. The diamond bit mole with steel layer, to increase the pressure applied to the rock drill lip, improve the drilling speed of the drill bit. Put the first-grade abrasive-high strength, coarse grain diamond and two grade abrasives -low strength, fine grain diamond in the diamond bit, to improve the life of diamond bit.
Size | NQ3 | Design | DCDMA |
Outer diameter MAX (mm) | 75.44 | Outer diameter MAX (in) | 2.970 |
Outer diameter MIN (mm) | 75.19 | Outer diameter MIN (in) | 2.960 |
Inner diameter MAX (mm) | 45.21 | Inner diameter MAX (in) | 1.780 |
Inner diameter MIN (mm) | 44.96 | Inner diameter MIN (in) | 1.770 |
Hole diameter (mm) | 75.6 | Hole diameter (in) | 2.98 |
Core diameter (mm) | 45.1 | Core diameter (in) | 1.77 |
Hole area (cm2) | 45.0 | Hole area (in2) | 6.96 |
Core area (cm2) | 15.9 | Core area (in2) | 2.47 |
We can provide
1. Test Report & MTC
2. Ready stock for normal sizes
3. Customized sizes welcomed
4. One stop service
| Bit type | Description | Set type of Diamond | Remarks |
| Wire-line | dia. 56, 59, 75 and 95, BQ, NQ, HQ | Impregnated | |
| Couple tube | dia.56, 59, 75, 76, 91, 110, 130 and 150 | Impregnated | |
| Single tube | dia.46,56, 59,75, 91, 110, 130, 150, 171, 223 and 300 | Impregnated |
| Impregnated Diamond Bits | ||
| Size | GEOTEC bits are available in all standard drilling sizes. Also, non-standard sized bits can be produced according to requirements from clients. | |
| Crown Height | GEOTEC offers crown impreg depths of 9mm, 12mm, 16mm and 25mm. The taller crown heights provide improved bit stability and reduced vibrations, enhancing bit life and performance. | |
| Waterways | Various waterways are available for diamond impregnated bits. Differing waterways allow for better flushing in various ground conditions and drilling systems. | |
| Threads | Standard threads as well as regional thread types required by clients are available. | |
| Compatibility | Our diamond bits and reaming shells are designed to be compatible
with all standard core barrels from other suppliers. | |
| Matrix | Impregnated bits matrices can be selected according to the chart below. | |
| Series number | Rock |
| 11 | magnetit, metamorphschist, gneiss, granite, basalt, gabbro, rhyolite, diorite, conglomerate, taconite. |
| 10 | magnetit, metamorphschist, gneiss, granite, basalt, gabbro, rhyolite, diorite, conglomerate, taconite. |
| 9/10 | andesite, pegmatite, hematite, magnetit, metamorph schist, gneiss, granite, basalt, gabbro, rhyolite, diorite. |
| 9 | andesite, pegmatite, hematite, magnetit, metamorph schist, gneiss, granite, basalt, gabbro, rhyolite, diorite. |
| 8 | dolomite, marble, peridotite, andesite, pegmatite, hematite, magnetit, metamorph schist, gneiss, granite, basalt. |
| 7/8 | dolomitic limestone, schist, serpentine, hard & mica schist, siliceous limestone, dolomite, marble, peridotite, andesite, pegmatite, hematite. |
| 7 | dolomitic limestone, schist, serpentine, hard & mica schist siliceous limestone, dolomite, marble, peridotite, andesite, pegmatite, hematite. |
| 6/7 | med-hard limestone, hard limestone, hard shale, dolomitic limestone, schist, serpentine, hard & mica schist, siliceous limestone, dolomite, marble, peridotite. |
| 6 | med-hard limestone, hard limestone, hard shale, dolomitic limestone, schist, serpentine, hard & mica schist, siliceous limestone, dolomite, marble, peridotite. |
| 5 | claystone, sandy limestone, soft schist, med-hard sandstone, siltstone, alluvial deposits, calcitic limestone, med-hard limestone, hard limestone, hard shale, dolomitic limestone. |
| 4 | claystone, sandy limestone, soft schist, med-hard sandstone, siltstone, alluvial deposits, calcitic limestone, med-hard limestone, hard limestone, hard shale, dolomitic limestone. |
| 3 | soft shale, chalk, marly shale, med-hard limestone, salt, frozen soil&ice, soft sandstone, sandy shale, claystone, sandy limestone, soft schist, med-hard sandstone, siltstone, alluvial deposits, calcitic limestone. |
| 2 | soft shale, chalk, marly shale, med-hard limestone, salt, frozen soil&ice, soft sandstone, sandyshale, claystone, sandy limestone, soft schist, med-hard sandstone, siltstone, alluvial deposits, calcitic limestone. |
| 1 | sand, soft shale, chalk, marly shale, med-hard limestone, salt, frozen soil&ice, soft sandstone, sandy shale, claystone, sandy limestone, soft schist. |
