1、Hex Shank: The drill bit adopts hex shank, which is suitable for most hand drills, bench drills, the usage is easier and safer, will not slip and fall off 2、Good Heat Dissipation: The diamond hole drill bit has wax inside to absorb and dissipate heat, resulting in faster and cooler drilling performance 3、High Strength Body: The body of the drill bit is forged with high strength metal, which is not easy to deform and can easily open holes 4、Applicable Machine: The brazing drill bit set is suitable for common hand drills and angle grinders on the market 5、Application: This hex shank diamond drill bit set is suitable for porcelain, tile, ceramic, granite, marble, masonry, stone, etc. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store