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This is a new type of diamond drilling bit for stone drilling , exclusive and latest technology which was awarded the national invention patent .With the characteristic of energy saving and environmental protection, fast drilling speed and high precision ,self sharpening segments is easy to use during continue drilling.
Application: Stone drilling(granite, sandstone ,marble ).
| Item No. | Diameter | Base length | Segment No. |
| ywd-1 | φ20 | 50 | 2 |
| ywd-2 | φ30 | 50 | 3 |
| ywd-3 | φ40 | 50 | 4 |
| ywd-4 | φ50 | 50 | 5 |
| ywd-5 | φ60 | 50 | 6 |
Other specifications can be supplied by the order of customers
Thin well synthetic diamond core drill bits special for stone