This diamond-coated drill bit set is your go-to tool for precise and smooth cutting without any broken edges. With a cutting hole diameter of 6mm, you can create clean and accurate holes effortlessly. The diamond dust coating ensures superior cutting strength and performance, making it ideal for drilling through glass, tile, porcelain, and more. Operating at reduced drill speeds with low pressure and water cooling, these drill bits offer a longer lifespan. Say goodbye to tremors and experience fast hole speeds with easy chip evacuation. This set is perfect for wet cutting tiles, glass, marble, granite, and more. Achieve professional results with this 50-piece set, suitable for various applications in kitchens, bathrooms, and showers. Start your hole at a 45-degree angle, maintain a steady water supply for cooling, and drill at low speeds for optimal performance. Upgrade your drilling experience with this versatile and durable diamond-coated drill bit set.