Features Superior Cutting Precision: Enjoy clean and smooth openings with no broken edges, thanks to the advanced design that minimizes shaking and chipping during use Enhanced Stability: Experience minimal incision resistance while drilling, ensuring a stable operation that protects against border breakage and enhances tool longevity Versatile Material Compatibility: Perfectly designed for drilling through tough materials including ceramic tile, marble, granite, and concrete, making it an essential tool for any project Ideal for Faucet Mounting: Specifically engineered to drill faucet mounting holes in stone countertops, providing a reliable solution for your home improvement tasks Durable Construction: Crafted with a specialized paint coating to prevent damage, this drill bit ensures long-lasting performance for all your drilling needs Features: 1、Paint on the body of this bit avoids getting y 2、Opening neat and smooth, no broken edges, no shaking and chip easily 3、Small incision resistance, drilling stably and will not break the border 4、Mainly used for drilling ceramic tile, marble, granite, concrete and other hard material 5、Ideal for drilling the faucet mounting holes in stone counter top Specification: Description: These drill bits are cutting tools used to remove material to create holes of circular cross-section.There are many sizes for your choice and can create different kinds of holes in many different materials. Attached to a drill which powers them to cut through the workpiece by rotation. Feature: Paint on the body of this bit avoids getting y. Opening neat and smooth, no broken edges, no shaking and chip easily. Small incision resistance, drilling stably and will not break the border. Mainly used for drilling ceramic tile, marble, granite, concrete and other hard material. Ideal for drilling the faucet mounting holes in stone counter top. Specification: Color: Gold Size (optional): 6/8/10/14/16/18/20/22/25/30/35/50mm 0.24/0.31/0.39/0.55/0.63/0.71/0.79/0.87/0.98/1.18/1.37/1.96inch Quantity: 1 Size(mm)227 Instruction: 1, To prolong its using life, better to use with water for cooling and lubrication. 2, The hole drill bit can be used with bench drill, hand electric drill. 3, When you using hand electric drill, start slowly at 45 degree angle and go vertical after you make an initial mark. Package Includes: 1 x Diamond Drill Bit Note: 1. Please allow 1-2mm error due to manual measurement. Thanks for your understanding. 2. There are two types of shank in different diameters and we will send in random. Please take the real one as standard. Package List