Features:

These Diamond Bits are Capable of Drilling into Extremely Hard Materials Such as Stone and Glass. Use a Low Speed Setting and Proper Cooling, Such as Water, to Ensure Longer Lasting Life.

Specification:

Brand: STONEGO

Material: Electroplated diamond

Hole Saw Diameters:

3mm/0.12", 4mm/0.16 ", 5mm/0.20 ", 6mm/0.24 ",

8mm/0.31 ", 10mm/0.39 ", 12mm/0.47 ", 18mm/0.71 ",

32mm/1.26 ", 50mm/1.97 "

Packaged included:

10PCS Diamond Drill Bits