7 Pieces Diamond Tile Drill Bit, Diamond Stoneware Drill Bit with 5/6/8/10/12/14 mm, Metal Drill Bits for 6mm, Metal Drill Bit, for Porcelain, Ceramic, Granite, Tiles

【Diamond Tile Drill Bit Kit】 This kit includes diamond tile drill bits of 5 mm, 6 mm, 8 mm, 10 mm, 12 mm and 14mm, as well as a 6 mm carbide metal drill bit, meeting your different drilling needs for more precise and easy-to-make holes.

【High Quality Materials】Our diamond metal glass drill bits are made from high quality alloy, with an integrated surface coating to prevent rust and provide faster cutting, making it easier to drill into hard tile enamel. They are characterized by high heat resistance, high efficiency, wear resistance and long service life.

【Cooling Wax】Dry diamond drill bits are filled with wax lubricant inside, suitable for dry and wet drilling. When drilling dry, the wax melts and cools the cutting surface, or you can use water for additional cooling during wet drilling, extending the life of the ceramic bits.

【How to Use】The procedure is to first install the yellow drill bit on the hand drill, tilting it at an angle of 45 degrees and rotating it quickly on the material surface. Then replace it with the appropriate size blue diamond bit and drill through the material easily. It is recommended to add water while drilling to cool down and extend the life of the bits.

【Note】The yellow drill bit (pre-drilled) can only be used as an auxiliary tool for pre-drilling and should not be used for long periods of time, otherwise it will be easily damaged. To drill efficiently and beautifully, it is necessary to replace the blue bit after using the yellow bit in order to extend the bits' lifespan and improve efficiency.

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