8 Pack Diamond Drill Bits Set for Granite Ceramic Marble Tile Stone Glass Hard Materials, Integrated Coolant for Fast Dry Drilling, Size 3/16 1/4 5/16 3/8 1/2 inch Masonry Core Drill Bits, Round Shank

Features

• Full Size Set: 8 Packs of Dry Diamond Tipped Drill Bits 2 pieces of 3/16inch (5mm), 2 pieces of 1/4inch (6mm), 2 pieces of 5/16inch (8mm), 1 piece of 3/8inch (10mm) and 1 piece of 1/2inch (12mm)
• Dry Drilling Design: Each Diamond Drill Bit is integrated with wax lubricant inside; it will melt and cool the bit tip to prevent diamond loss, let the bit cool after each hole
• Clean Holes in Tiles: Dry Diamond Core Bit set equipped with Vacuum Brazed Diamond Technology, able to drill clean holes for tiles, porcelain, granite, ceramic
• Precise Design: Built with Round Shank compatible with most popular electric Drills, Angle Grinders, Bench Drills; Special Side flutes design can remove debris faster; with Depth mark
• First Class Customer Service: 8 Packs Diamond Drill Bits set coming in a heavy-duty case for easy access and safe storage; if you need any assistance in using the item, please feel free to contact us