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| Type | Diameter | Height | Diamond layer height | Diamond chamfer size | Carbide chamfer size |
| OGF0808 | 8.00/8.20mm | 8.00mm | 2.0/2.5/ 3.0mm | 0.40mm×45° | 0.76mm×45° |
| OGF0813 | 8.00/8.20mm | 13.20mm | 2.0/2.5/ 3.0mm | 0.40mm×45° | 0.76mm×45° |
| OGF1008 | 10.00mm | 8.00mm | 2.0/2.5/ 3.0mm | 0.40mm×45° | 0.76mm×45° |
| OGF1013 | 10.00mm | 13.20mm | 2.0/2.5/ 3.0mm | 0.40mm×45° | 0.76mm×45° |
| OGF1308 | 13.44mm | 8.00mm | 2.0/2.5/ 3.0mm | 0.40mm×45° | 0.76mm×45° |
| OGF1313 | 13.44mm | 13.20mm | 2.0/2.5/ 3.0mm | 0.40mm×45° | 0.76mm×45° |
| OGF1608 | 15.88/16.10mm | 8.00mm | 2.0/2.5/ 3.0mm | 0.40mm×45° | 0.76mm×45° |
| OGF1613 | 15.88/16.10mm | 13.20mm | 2.0/2.5/ 3.0mm | 0.40mm×45° | 0.76mm×45° |
| OGF1908 | 19.05mm | 8.00mm | 2.0/2.5/ 3.0mm | 0.40mm×45° | 0.76mm×45° |
| OGF1913 | 19.05mm | 13.20mm | 2.0/2.5/ 3.0mm | 0.40mm×45° | 0.76mm×45° |
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Welcome to our Frequently Asked Questions page. We have compiled answers to common questions you may have, hoping to provide you with clear and quick solutions. If you cannot find the information you need here, please feel free to contact our customer support team.
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| Parameter item | Specifications/Description | Notes |
| Standard Sizes | BQ, NQ, HQ, PQ, PQ3 | Compliant with DCDMA international standards |
| Cutter Size | 1308 (13mm), 1613 (16mm), 1913 (19mm) | Select based on the hardness of the formation |
| Blade Count | 3 – 6 wings | Few-bladed drills are suitable for fast drilling in soft rock, while multiple-bladed drills are suitable for hard rock. |
| Applicable lithology (Formation) | Mudstone, sandstone, limestone, shale, salt rock | Mohs hardness 3-7 (f < 12) |
| Body Material | Matrix Body / Steel Body | The tire body is wear-resistant, and the steel body is impact-resistant. |
| Back Rake | 15° – 25° adjustable | The larger the angle, the stronger the impact resistance; the smaller the angle, the faster the cutting speed. |
| Connection thread | API Regular, IF, or special core-taking tube thread | After high-frequency quenching treatment, it is fatigue resistant. |
| Recommended WOB (Working Weight on Drill) | 6 – 15 kN (depending on drill bit diameter) | Compared to impregnated diamond bits, it requires less drilling pressure. |
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