Features Premium Diamond Material: Crafted from high-quality diamond, this tool ensures durability and exceptional cutting performance for various materials Labor-Saving Screw Design: The innovative screw hole design allows for easy attachment to angle grinders, making your cutting tasks more efficient and effortless Neat and Smooth Openings: Enjoy clean cuts with no broken edges, minimizing the need for additional finishing work and reducing material waste Versatile Compatibility: Ideal for use on marble, ceramic tiles, vitrified tiles, stone, jade, and microcrystalline stone, making it a must-have for any DIY enthusiast Advanced Hot Spring Technology: The thickened blade design enhances cutting speed and efficiency, allowing you to complete projects faster and with precision Features: 1、Adopts high-quality diamond as material which is strong and . 2、The screw hole is designed for angle grinders and is more labor-saving. 3、The opening is neat and smooth with no broken edges, and does not produce tremor effect. 4、Suitable for marble, ceramic tile, vitrified tile, floor tile, full tile, stone, jade, microcrystalline stone. 5、The hot pring technology makes the blade thick and opening more fast. Specification: Item Type:Diamond Hole Saw Material:Diamond Inner Thread:M10 Size:18mm/20mm/22mm(Optional) Package List: 1 x 22mm Angle Grinder Hole Saw Package List 1 x 22mm Angle Grinder Hole Saw