The diamond drill bits cut clean holes in the hardest materials including granite, glass, marble, porcelain (grade 5) and slate.
The Faithfull drill bit comes complete with a suction attached water reservoir to cool and lubricate the bit while drilling. They have a double-ended design and should be used at speeds between 500-700 rpm with light pressure.Ideal for bathroom, kitchen and tiling industries.
The Faithfull FAIDDSET3 set contains 1 of each of 5, 6 and 8mm bits.