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Brand Name : ROSCHEN
Model Number : NQ HQ PQ
Certification : ISO
Place of Origin : CHINA
MOQ : 5 pcs
Price : Negotiate
Supply Ability : 1000000 pcs
Packaging Details : wooden box
name : diamond core bits
item : Impregnated diamond core bit
series : diamond impregnated core bit
Series no : boart longyear diamond core bit
type : ultramatrix diamond core bit
model : ultramatrix diamond bits
Impregnated Diamond Core Bit NQ HQ Ultramatrix core bits for Mining, Exploration, Drilling
| Wireline diamond core bits specifications | ||
| SIZE | CORE Ø | HOLE Ø | 
| AQTK | 35.5 mm (1-3/8 in) | 48 mm (1-7/8 in) | 
| BQ | 36.4 mm (1-7/16 in) | 60 mm (2-3/8 in) | 
| BQTK | 40.7 mm (1-5/8 in) | 60 mm (2-3/8 in) | 
| NQ | 47.6 mm (1-7/8 in) | 75.7 mm (3 in) | 
| NQTK (NQ2") | 50.6 mm (2 in) | 75.7 mm (3 in) | 
| NQ3 | 45 mm (1-3/8 in) | 75.7 mm (3 in) | 
| HQ | 63.5 mm (2-1/2 in) | 96 mm (3-3/8 in) | 
| HQ3 | 61.1 mm (2-3/8 in) | 96 mm (3-3/8 in) | 
| PQ3 | 85 mm (3-3/8 in) | 122.6 mm (4-7/8 in) | 
| PQ3 | 83 mm (3-1/4 in) | 122.6 mm (4-7/8 in) | 
Impregnated Diamond Core Bit Matrxi Bond Hardness:
| Matrix | T1, T2 | T3, T4 | T5 ~ T8 | T9 ~ T11 | 
| Section / kind of rocks | Soft rock | Medium hard rock | Hard rock | Very hard & Ultra hard rock | 
| Diamond mesh | Large ←→ small | |||
| Matrix Hardness | Hard ←→ Soft | |||
| Impregnated Core Bit Matrix Selection Chart | ||||
| Rock Hardness | Rock Characteristics | Type of Rock | Taesung | |
| DCDMA | MOHS | (Example) | (T-Series) | |
| 7 | 8~9 | Extremely Hard, Unbroken Fine Grained Formation, Non-abrasive | Quartz Chert Jasper | T-9, 10 | 
| 7 | 8 | Very Hard, Unbroken Fine Grained Formation, Non-abrasive | Quartzite Taconites Diories | T-8, 9 | 
| 5 | 7 | Hard, Fine to Medium Grained Unbroken Formation | Granite Andesite Gneiss Schist Basalt | T-7, 8, 9 | 
| 4 | 6 | Moderately Abrasive, Medium to Coarse Grained Formations Solid to Slightly Fractured | Pegmatite Monzanite Gabro | T-5, 6, 7 | 
| 3 | 5 | Abrasive, Medium to Coarse Grained Formations, Broken | Quartzite Conglomerate Sandstone Rhyloite | T-3, 4 | 
| 4 | 4~5 | Abrasive, Medium to Coarse Grained Formations, Broken | Sandstones Pegmatite Taconites Quartzite | T-2, 3 | 
| 1 | 4 | Extremely Abrasive, Medium to Coarse Grained Highly Fractured, Gaulty and Sheared Ground | Sandstones Quartzite Limestone | T-1, 2 | 
|   | 
| Impregnated Diamond Core Bit NQ HQ Ultramatrix core bits for Mining, Exploration, Drilling Images | 
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