Ceramic drill bit for Granite with tungsten carbide cutting tip have long working life and efficient drilling.

Milled flutes from a single piece of steel for strength.

Flutes used to carry debris away from the cutting tip and eject itfrom the drilling hole.

Periodic clear of flutes during working will reduce heat and help prevent bit bending.

For the hardest ceramic, procelain, tile ect;

Unique carbide tip better performance creramic; 

 Diameter from 4.0mm to *6mm;

Overall length from *5mm to **0mm;