Marble and Stone Hole Drill Bit Set

The set includes:
1 x 15pcs diamond hole saw drill head
Sizes: 6/8/10/12/14/16/18/20/22/25/26/28/30/40/50 mm
0.23 / 0.31 / 0.39 / 0.47 / 0.55 / 0.62 / 0.7 / 0.78 / 0.86 / 0.98 / 1.02 / 1.10 / 1, 18 / 1.57 / 1.97 / ""
Quantity: 15 pcs

Characteristics:
- Only water is needed to lubricate the material.
-Always use (water) for lubrication, otherwise the diamond bit will burn.
- Can be used with a standard electric drill.