[Multifunctional & Wide Usage] Designed not only to enlarge and round bevel existing holes, but also for shaping tasks in porcelain, , hard ceramic, marble, stones, etc. This Chamfer Bit works as an efficient tool to easily create round shape indentations, perfect for facilitating pipes or electric wire lines, making it a must-have for construction, renovation, and crafting projects. [Exceptional Material & ] Crafted from premium diamond and sturdy metal, this Countersink Drill Bit boasts high strength and hardness. It serves as an essential tool to enhance the edge finishing of exposed holes, providing a smooth and polished finished product. [Cost & Time Efficient] You can save on both time and money with the help of our Diamond Beveling Chamfer Bit, as you can create multiple hole sizes with just one standard core bit, thus, eliminating the need to invest in multiple bits for varying hole sizes. [Easy Operation & Usage Precautions] This diamond chamfer bit, offering flexibility of being used with or without water, is straightforward to operate. However, it is important to note that it's not used to drill holes, but only to enlarge, shape, or round bevel existing holes, helping you achieve your project goals more effortlessly. Colour:Gold Material:diamond Package Contents: 1 * drill