HIGH QUALITY MATERIAL- The hole saws are made of industrial grade carbon steel with nickel-coated body to resist corrosion.
Efficient & Smooth Cutting: The diamond drill bits with thicker diamond coating make the edge of the groove sharper, which can achieve smooth and high-precision cutting.
Surface treatment of hole saw makes it sharper and durable while help reduce drilling resistance and pressure.
LARGE Slot - The slot in hole saw facilitate the entrance of cooling water and removal of debris during drilling.
Application： Designed to drill holes in porcelain, hard tile, quarry tile, granite tile and glass
Warm Tips
How to Cut Successfully:
*Make a half-moon-shaped notch on the glass/tile/stone drill with 45 degrees
*Slowly raise the drill bit to 60 degrees, and then lightly drill.
* Reach 90 degrees and continue drilling. Finally, the glass/brick/stone is drilled.
This technique requires the drill bit to "shake" instead of applying steady pressure all the time.
Please keep the speed at 800-1000 per minute with low drill pressure
Please add water as coolant and drill slowly
