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Factory Wholesale Diamond Core Drill Bit For Stones
Core drill bits are a type of cutting tool used for drilling holes in hard materials such as concrete, stone, and masonry. They are commonly used in construction and engineering projects where precision drilling is required.
| 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) |
| PQ™ | 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) |
| SYSTEM | CORE Ø | HOLE Ø | ||
|---|---|---|---|---|
| mm | in | mm | in | |
| A | 48,0 | 1.89 | 27,0 | 1.06 |
| B | 59,9 | 2.36 | 36,4 | 1.43 |
| N | 75,7 | 2.98 | 47,6 | 1.88 |
| H | 96,1 | 3.78 | 63,5 | 2.50 |
| P | 122,6 | 4.83 | 85,0 | 3.35 |