Full Size Set: 8 Packs of Dry Diamond Core 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 in all types of tiles, porcelain, granite, ceramic (not for wood)
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
