The diamond drill grinding bit replacement is an essential accessory for maintaining the performance of your grinding tools. Its diamond coating ensures performance and cutting ability, making it suitable for a variety of materials. This replacement bit is easy to install, ensuring minimal downtime and maximum efficiency. Features -Color:Golden -Material:Emery -Size:4.50X3.80X3.80cm/1.77X1.49X1.49in -Diameter:38mm -Rapid chamfering: achieve fast and efficient chamfering on tiles and marble with the brazed diamond chamfering tool, improving your workflow -Multifunctional hole expansion: the tool's hole expansion capability allows for easy enlargement of tile and marble holes, making it highly versatile -Comprehensive grinding solution: this tool is not to chamfering; it also excels in angle grinding and polishing, offering a full range of stone processing options -Precision engineering: the included drill bits and grinding heads are designed for high precision, ensuring quality in all your projects -Wide range of uses: for home improvement, construction projects, and professional stone processing environments Package list: 1 bit