Vacuum Brazed Diamond Core Drill Bit Hole Saw with Golden Tone Round Shank

• Made of vacuum brazed diamond provide durable and long lifetime.
• The diamond hole saw with high quality and excellent performance and you will get the clean and precise hole.
• High quality diamond grit creates a high precision and smooth cut, with less tear.
• Dry or wet use all available.
• They are ideal for drilling glass, tile bottles, fiberglass, porcelain, tile, ceramic, etc.