Tile Drill Bit Set, Diamond Drill Bit Drill Gres with 5,6,8,10,12 mm, Metal Drill Bit for 6mm Tile, Ceramic Drill Bits for Glass, Granite Marble Quartz Hard Materials

【Several Diameters】In addition to 5, 6, 8, 10 and 12 mm tile bits, you will receive a 6 mm carbide drill bit. This saves you the hassle of drilling with a diamond drill bit, allowing you to drill holes even more precisely and easily. 【Unique Dry Drilling Design】Wax inside for cooling, our diamond tip drill bits have built-in wax cores that automatically absorb and dissipate heat as you go. Dry drill has no water and less pollution. 【Multiple Uses】Ceramic stone drill bit ideal for drilling clean holes in hard materials including tiles, porcelain, granite, ceramic, glass, mirror, stone and brick. Note: Not for wood, metal, plastic. 【Compatible Round Shanks】The glass drills are designed with a round shank, compatible with most machines, such as hand drills, angle grinders and bench drills. Side flutes help clear debris and drill holes smoothly and quickly; the depth mark is also useful for precise projects. 【High Quality Materials】 Drill bit case with vacuum brazed diamond technology offers very high efficiency, cuts faster and lasts longer. 6pcs Dry Diamond Drill Bit Set - 5, 6, 8, 10, 12mm and 6mm Carbide Drill Bits. Ideal for drilling clean holes in hard materials. High quality high temperature resistant diamond grit for efficient drilling. Filled with cooling wax, suitable for dry drilling. No cooling required when drilling, as the drill bits are equipped with cooling wax inside. However, it can increase the life of the drill bits. How to use? 1. Install the hole punch bit on the hand drill for use. 2. The electric drill keeps the speed high and tilts 45° during the whole process to get the crescent groove. 3. After drilling the positioning groove, place the electric drill vertically, slowly shake it in one direction and drill. 4. Punching completed. It is important to use a slight rotating movement when drilling! This guarantees ideal drilling results. Note Prohibited materials: cement, metal, tempered glass, wood, plastic, etc. If you are using a cordless screwdriver, make sure the speed is above 1600 RPM. When using a hand drill, make sure the speed is above 2000-3000 rpm. Dry diamond drill bit set 5/6/8/10/12 mm 6mm carbide drill bits Drilling depth: ≤35mm Length: 65mm