Features High-Quality Diamond Construction: Crafted from premium diamond material, ensuring exceptional strength and durability for long-lasting performance Labor-Saving Screw Hole Design: Engineered specifically for angle grinders, this tool features a screw hole that enhances ease of use and reduces effort during operation Smooth and Clean Openings: Delivers neat, precise cuts without broken edges or tremors, providing professional-quality results every time Versatile Compatibility: Ideal for cutting through various materials such as marble, ceramic tile, vitrified tile, stone, and jade, making it a must-have for any project Enhanced Cutting Speed: Utilizes advanced hot spring technology to create a thicker blade, resulting in faster and more efficient openings for all your cutting needs 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 20mm Angle Grinder Hole Saw Package List 1 x 20mm Angle Grinder Hole Saw