Feature: 1. Good Compatibility: Designed to be compatible with M10 threaded connections, this diamond cone angle grinder bit is suitable for standard angle grinders, especially the M10 angle grinder 100 TYPE. Its wide compatibility allows for easy integration into existing tool sets, enhancing functionality. 2. High Accuracy: This diamond beveling chamfer bit is crafted using diamond material, ensuring superior sharpness and grinding accuracy. It is highly effective for hole enlarging, chamfering, and polishing, making it a versatile tool for materials such as marble, quartzite, ceramic tiles, and granite. 3. Incisive Grinding Performance: With a 50 grit, this hole enlarging trimming grinding bit offers incisive and efficient grinding capabilities. Its design guarantees clean, accurate cuts and slick surfaces with every use, enhancing the aesthetic and structural quality of your work. 4. Sturdy And Rugged: The diamond welding structure imparts abrasion resistant and long service life to the diamond countersink drill bit. Even after prolonged use, this tool retains its performance, ensuring consistent results without the need for frequent replacements, making it an economical choice for professionals and handcraft enthusiasts. 5. Wide Application: Suitable for hole drilling, hole enlarging, chamfering, and polishing on materials like marble, quartzite, and ceramic tiles, this diamond conical grinder bit is ideal for processes requiring hole drilling followed by enlargement. Its high accuracy and durability make it a reliable tool for various applications in both professional and handcraft settings. Specification: Item Type: Diamond Beveling Chamfer Bit Material: Diamond, Alloy Steel Size: Approx. 38mm / 1.5in, 50mm / 1.97in Application: Marble, Quartz, Ceramic Tile Hole Opening, Enlarging, Chamfering, Polishing Suitable for processes that require hole opening and enlarging. Regularly installed on 100 angle grinder, hand drill.. Package List: 1 x 38mm Diamond Beveling Chamfer Bit 1 x 50mm Diamond Beveling Chamfer Bit 2 x Storage Boxes