Suitable for Stone, Tiles, Ceramics, Glass and Granite, etc Processing
This hole saw set has 15 sizes, including 6 8 10 12 14 16 18 20 22 25 26 28 30 40 50 mm. They are made of high-quality material to ensure perfect performance and long service life. They are specially designed to make clean and accurate holes on glass and tile.
Start your hole diagonally, make a round trace, and then hold the drill straightly.
Please use lubrication (water) every time, or the diamond core drill will burn.
To prolong the life of the drill bit, please use water lubrication and low drill pressure.
They can not be used on concrete or for depths more than 1/2".