Comfylichi 9 Pcs Dry Diamond Drill Bit Set, Sizes 1/4" 5/16" 3/8" 1/2"

Comfylichi 9 Pcs Dry Diamond Drill Bit Set, Sizes 1/4" 5/16" 3/8" 1/2"

• 9-Piece Dry Diamond Drill Bits Kit: This comprehensive kit offers 9 high-quality tile drill bits in various sizes: 2 × 6mm (1/4 inch), 2 × 8mm (5/16 inch), 2 × 10mm (3/8 inch), 2 × 12mm (1/2 inch) diamond drills, and 1 × 6mm tungsten carbide drills, which will satisfy your flexible use in different drilling needs
• Efficient Dry Drilling, no water required: The ceramic drill bit is equipped with solid cooling wax, which can effectively reduce cutting temperature without adding water. Combined with the guiding action of the carbide bits, this ensures precise and stable drilling results, say goodbye to cracks and chips, extended bits life
• Durable Glass Drill Bit: This diamond drill bit is made of strong diamond particles through precise brazing technology, high hardness, sharpness and durability, its side-cutting edge design can quickly remove debris, depth marking to ensure accurate drilling, round shank design is compatible with electric drills, angle grinders
• Where to Use Diamond Drill Bits：Designed to drill clean and precise holes in hard materials, this diamond drill bit set is ideal for tiles, porcelain floors, granite, ceramics, glass, mirrors, marble, Quartz stone, and Jade, (not suitable for cement, metal, tempered glass, wood, or plastic)
• Tips for Using Diamond Hole Saw:Adjust the drill to a 45-degree bevel and lean lightly on the tile. After cutting crescent grooves at high speed, slowly perpendicularize the drill to make holes and increase the drilling speed while gently shaking to remove chips. Note: Use high power drills (>2000 rpm), carbide bits for initial drilling only, diamond bits for subsequent use