Use and Care Manual

7
Drilling a Hole in Sink or Countertop
1. Search “How to Drill a Hole in Granite Countertop” on YouTu b e for
your reference.
2. Choose a 1/2-inch Diamond hole saw for granite and a titanium
drill bit for steel.
3. Use a coolant to disperse heat. Choose water for granite or oil for
steel.
4. Use a 1-1/2" Suction Base Drilling Ring to hold coolant and
prevent drill bit from slipping on the counter.
5. Start slowly. Be cautious, as the power drill might slip and damage
the counter surface.
6. Set variable speed power drill at 100-200 RPM.
7. Do NOT use hammer drill on natural stone, glass, and ceramic
materials.
8. Hold drill bit vertically and swirl a little to apply pressure evenly in
a circular motion.
Be patient and deliberate. It can take 20-40 minutes to drill through one
inch.