Features Superior Diamond Construction: Crafted from high-quality diamond material, this drill bit opener ensures exceptional strength and durability for long-lasting performance Effortless Compatibility: Designed with a screw hole specifically for angle grinders, this tool provides a more labor-saving and efficient experience during use Clean and Precise Cuts: Experience neat and smooth openings without broken edges, eliminating tremors and ensuring professional-quality results every time Versatile Applications: Ideal for a variety of materials including marble, ceramic tiles, vitrified tiles, floor tiles, stone, jade, and microcrystalline stone for maximum utility Enhanced Cutting Speed: Featuring advanced hot spring technology, the blade is thicker, allowing for faster openings and increased productivity in your projects 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