9 Pack Premium Diamond Drill Bit Set - Versatile Tools for Precise Drilling on Porcelain, Ceramic, Glass, Marble, and More

9 Pack Premium Diamond Drill Bit Set - Versatile Tools for Precise Drilling on Porcelain, Ceramic, Glass, Marble, and More

• 9-Piece Complete Drill Bit Set: Includes 2×6mm (1/4 inch), 2×8mm (5/16 inch), 2×10mm (3/8 inch), 1×12mm (1/2 inch) diamond drill bits, plus 2×6mm tungsten carbide drill bits. Covers all mainstream drilling sizes for daily projects, eliminating the need for additional purchases
• Water-Free Dry Drilling Technology: Built-in solid cooling wax reduces cutting temperature effectively without adding water. Tungsten carbide bits provide precise guiding, ensuring stable drilling with no cracks or chips on fragile materials, while extending the service life of the bits
• Durable & High-Performance Material: Crafted with high-quality diamond particles via precise brazing technology, featuring exceptional hardness and sharpness. Side-cutting edges enable quick debris removal, and depth markings ensure accurate drilling depth. Round shank design is compatible with electric drills, angle grinders, and most power tools.
• Versatile for Hard Materials: Ideal for drilling clean, precise holes in tiles, porcelain, granite, ceramics, glass, mirrors, marble, quartz stone, and jade. Note: Not suitable for cement, metal, tempered glass, wood, or plastic
• Easy to Use for Beginners & Pros: Works with high-power drills (>2000 rpm). Tilt the bit at 45° to create a crescent groove for positioning, then adjust to vertical for drilling. Slightly shake the drill to remove debris while increasing speed. Tungsten carbide bits for initial positioning only; diamond bits for subsequent drilling