ZFYQ Drill Bits Set for Ceramic Tile, Porcelain, Brick, Glass, Plastic and Wood with Durable Storage Box, 7Pcs

【Superior Performance】This set of strong tungsten carbide drill bit has excellent sharpness and wear resistance, making drilling easier. Sharp drill tip, easy to position, stable drilling, fast speed, no broken edge, neat and smooth opening, won't damage the tile glaze. 【PREMIUM MATERIAL】Sturdy carbide drill tip has a long service life and is sharper than normal steel drill bits. 【Multi-Material Tile Drill】Drill holes with high precision, can easily penetrate a variety of materials: tile, brick, glass, mirror, plastic and wood, etc. Please use water to cool down when drilling. 【U-Slot Design 】U-shaped slot design for quick drilling and dust removal, with 3-flat shank to hold drill tools firmly. 【7 Cutting sizes 】3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, you can start from the smallest drill bit and drill according to the required size.