What drill is drilled on marble?
The first is the degree of carborundum drill (hollow glass drill drill hole), suitable for marble, ceramic tile, glass, the use of ordinary drill line; when drilling evenly and cooling water, not be too strong, easy to cause the drill burn (overheating to annealing)
Do not use impact drilling, use an electric drill, and a high-speed steel drill, which is equivalent to grinding a hole out of the marble, with the impact of drilling will have a risk of cracking!
The second is also a carbide drill, which can also be applied to the opening of marble, tile, glass and so on. To drill gear to non hammer gear, slowly drilling, drilling position should not be too on the marble edge, the method is applicable to the local small aperture.
