The new DTA Tornado Series M14 diamond dry drill bits range from 6mm to 50mm. They are ideal for cutting a large range of materials.

DTA Tornado Series diamond dry drill bits range from 6mm to 12mm. They have a wax core for coolant. Ideal for porcelain, ceramic and stone.

The DTA core drill bit range extends from 5mm to 110mm in size. They are designed to be used with water and are ideally used with suction cup guides. They are suitable for drilling porcelain.