5/6/8/10/12mm Multifunctional Tile Drill Bits For Glass Ceramic Concrete Hole Opener Brick Hard Alloy Triangle Bit Tool

Brand new and high quality. Made of high quality hard alloy material. The process of the cutter head strengthen the drill hardness. Full-grinding and anti-rust treatments, clean and sharpness without burrs. The is more wear-resistant and more durable. 5/6/8/10/12mm Multifunctional Tile Drill Bits For Glass Ceramic Concrete Hole Opener Brick Hard Alloy Triangle Bit Tool Features: Brand new and high quality Made of high quality hard alloy material. The process of the cutter head strengthen the drill hardness. Full-grinding and anti-rust treatments, clean and sharpness without burrs. The is more wear-resistant and more durable. Small incision resistance, feature drilling stably, fast speed, not breaking the border. Opening neat, smooth, no broken edges, no tremor-phenomenon, chip easily. Professional tile drill bits provide smooth and accurate drilling in ceramic tiles, marble, thin iron plate, and metal. 5 different sizes suitable for your different needs. It Can be installed in electric