Set of 10 multi-purpose tungsten carbide drill bits for tiles, glass, porcelain, concrete, brick walls and glass (5 to 12 mm)

High Quality: This drill bit is made of professional steel alloy, offering high hardness, increased strength and durability, good wear resistance, and a longer lifespan than ordinary steel drill bits. Dimensions: Set of 10 drill bits, 5 different sizes: 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, to meet your various needs. The four-sided chamfer facilitates positioning and stability. Drilling speed is faster, stability is better, fluctuation frequency is low, and efficiency is higher. Use: Suitable for drilling holes in tile, glass, marble, and mirrors. For drilling holes in hard materials, please use water lubrication. Proper cooling can extend the life of the drill bit. Tungsten carbide drill bit: This drill bit is made of tungsten carbide, which is more efficient and offers a longer lifespan. Professional-grade alloy steel: Allows for smooth and precise drilling of tile, marble, mirrors, glass, aluminum, concrete, and wood. Package contents: The package contains 10 x 6mm glass and tile drill bits and a plastic storage box for easy transport. For DIY enthusiasts and home decorators, this is also an essential tool for drilling glass and other hard and fragile surfaces.