Set of 7 drill bits for tiles, glass, concrete, stone, brick, ceramics and mirrors (3mm 4mm 5mm 6mm 8mm 10mm 12mm)

Thicker, higher-quality tungsten carbide with a reinforced head that prevents jaw breakage. The surface is treated with an anti-rust coating, offering good abrasion resistance and extreme hardness for extended service life. The U-shaped slot design allows for quick dust removal during drilling. The triangular handle design provides more stable operation, preventing slippage and scratching, and won't damage the finish. (The cutting edge and hole are smooth and complete, leaving no burrs.) The robust, pointed tungsten carbide tip easily penetrates various materials, is easy to locate, drills stably and quickly, without breaking the edge, and creates a clean, smooth opening. (The rotating thread design allows for smoother drilling and chip removal.) U-shaped slot design with quick dust removal, triangular handle design for more stable operation Suitable for glass, ceramic tiles, wood, stone, concrete, bricks, etc. When drilling hard materials (glass, porcelain tiles, marble, or granite), please use water for lubrication!