Item Type: Diamond Drill Bit Material: Diamond Color: As shown in the picture Product Size: Approx. 6.5x2.5cm / 2.6x1.0in Weight: Approx. 57g / 2oz Application: Drilling of tile, wall, etc 1Suitable for drilling holes for granite and marble, masonry, concrete, tile/ceramic and stone. 2Made of high?quality materials, good corrosion resistance, can maximize the life of the tool. 3Brazed diamond bits provide very high efficiency, cutting faster and lasting longer. 4The wax is cooled inside, and the has a wax core built in, which automatically absorbs heat. 5The opening is neat and smooth, without broken edges, not easy to shake and chip, the cutting resistance is small, and the drilling is stable.1. Please allow 1?2in error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.1 x Diamond Drill Bit