Features: Made of high-quality materials for durability Dry drilling does not enter water, and the 6mm-35mm bit containing wax helps to cool the bit. Wide application of drilling tile ceramic granite marble stone... Vacuum brazing technology provides longer service life than electroplating technology. Less debris, less breakage, less heat, and good finish. High diamond exposure rates provide faster, more aggressive drilling. Save your money and time... Product parameters: Material: Diamond Optional diameter: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm,20mm, 25mm, 30mm, 35mm,40mm,45mm,50mm,60mm,65mm,68mm Thread: M14 Colour: red Length:60mm Quantity: 1pc Application: dry/wet drilling of tiles, granite, marble, stone, masonry, bricks... Package list: 1 * Diamond core drill bit Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data.