These drill bits have been engineered & manufactured in Germany to give the best performance and life in hard ceramic and porcelain tiles.
The tips are Cobalt not Tungsten Carbide and therefore is no need for hammer drills.
Be able to drill through a tiled wall and the brick behind the solid anchor point; with NO damage to either.
Suitable for drilling masonry, marble, granite, biscuit & ceramic tiles and vitrified porcelain tiles.