1These drills are very easy to use that go through the glass, granite, ceramic, porcelain like butter. And remember to keep the materials well cooled with water as you are drilling the holes.

Specifications:
Material: Electroplated diamond
Package Weight: 137g / 4.83oz
Package Size: 12 * 9 * 3.3cm / 4.72 * 3.54 * 1.30in

Package List:
10 * Glass Drilling (6 8 10 12 14 16 18 20 22 32mm)

Note:
Please remember to add water to the materials while cutting or drilling to preserve them from over heating.

• High quality diamond drill bit set.
• A set of glass drills that are very easy to work with.
• Good performance, making clean and accurate holes for you.
• 10-piece set of glass drill tool. (6 8 10 12 14 16 18 20 22 32mm)
• Hole saw drill bit for ceramic tile, marble, granite, rock, porcelain, etc.

High quality diamond drill bit set.KKmoon