GEMMAHW Masonry Drill Bits Set of 7 (Φ 3-12mm), Professional Concrete, Brick, Tile, Wood, Metal, Glass Drill Bits, High Hardness Cemented Carbide, Triangle Shank, 2-Flute Spiral, 7 Count

• Comprehensive Set: Our Concrete Drill Bits Set includes 7 versatile sizes: Φ3mm, Φ4mm, Φ5mm, Φ6mm, Φ8mm, Φ10mm, and Φ12mm, catering to all your drilling requirements. Each bit is neatly organized in a convenient storage box for easy access and portability.
• Superior Durability: Crafted from high-grade YG8 cemented carbide, our brick drill bits deliver exceptional hardness and wear resistance. This premium material ensures longevity, reducing the risk of cracking, breaking, or burning during use.
• Optimized Performance: Featuring a precision-sharp blade tip and a deep flute design, our tile drill bits enable quicker drilling while effectively clearing debris. Enjoy seamless drilling that maximizes efficiency and minimizes interruptions.
• Anti-slip Design: With a triangle shank design, the masonry drill bits offer a reliable anti-slip feature for enhanced stability, ensuring a firm grip in your three-jaw drill chuck during high-speed drilling, also making it compatible with most drill types, including hand drills, cordless drills, and bench drills. (Note: The Φ3mm and Φ4mm bits come with a round shank.)
• Multi-materials Compatibility: Our metal drill bits excel at penetrating a variety of materials, including tile, concrete, metal, glass, brick, wood, and plastics. For optimal results with harder materials, we recommend adding water during drilling to prevent overheating, reduce wear, and prolong the lifespan of your drill bits.

Masonry Drill Bits Set of 7 (Φ 3 4 5 6 8 10 12mm), Professional Concrete Drill Bits, Brick Drill Bits, High Hardness Drill Bit for Tile, Wood, Metal, Brick, Glass, with Plastic Storage Box