Buy cheap diamond core drill bits from Chinese factory
This diamond core drill bits adopt the vacuum brazed technology to weld the diamonds on the edge of the steel barrel. High diamond concentration and excellent welding stength provides a good sharpness and superior lifespan to this core drill bit.
These vacuum brazed diamond core drill bits are designed for drilling marble, glass and tiles. We adopt the 30/40# diamonds to produce these drill bits and a high diamond concentration, so that they can deliver a smooth drilling surface. We can make all size and thread to apply your work. Sunny is keep to making your drilling easier!
Product Feature:
1) Suitable for cutting, dry drilling various hard Non-ferrous materials, such as marble, granite, glass, ceramic, hard concrete and brick.
2) Smooth cutting surface, high cutting speed.
3) It is your problem solver for drilling holes.
4) Longer working life than electroplated one.
5) It can drill holes with or without water(Dry or wet drilling).
