50mm Diameter Diamond Hole Saw Drill Chuck, Porcelain Marble Slate Hollow Core Drill Bit for Glass, Ceramic, Porcelain, Tile, Marble, Granite (50mm Diameter)Description High-quality materials The diamond hole saw is made of high-carbon steel with a clean and smooth opening without broken edges. Small incision resistance, stable drilling, and will not break the border. Good design The center pilot holes and side holes help easily remove waste; The diamond drill bit has gold-plated paints to prevent rust, improve surface corrosion resistance. Wide application The diamond drill bits can be used for drilling ceramic tiles, marble, glass, granite, concrete, and other hard materials. Works with all electric drills and impact drills. It is your ideal choice for DIY projects and home maintenance and repair. Note When cutting hard materials, it is important to ensure that the bit remains cool to avoid damage to the material. cutting and premature wear of the bit. Water is required for lubrication when drilling, which can extend the life of the bit. Specifications Material: High Carbon Steel Color: Yellow Size: 50mm Diameter Package Includes: 1 x Diamond Hole Saw Drill Bit, Design for your life for application Suitable for glass, ceramic tile, porcelain tile, marble, granite, rebar concrete and other hard materials. Suitable Machines Hand drill, bench drill. Please note that keeping water or lubrication to cool the tool will extend its life.