【Ultra-Thin Vacuum Brazed Cutting Blade】4.5 inch (115mm) lozlin diamond blades set includes 5pcs ultra-thin rock slab grinding disc with 1.6mm cutter head thickness and 30mm grit width, providing faster, smoother cutting with less chipping on stone, tile, marble and glass. 【Wide Application for Cutting & Grinding】This angle grinder diamond blade works as a tile cutting disc and tile grinder blade, ideal for rock slabs, granite, marble, ceramic tile and glass cutting disc tasks, suitable for both cutting and edge grinding applications. 【Porous Design for Heat Dissipation】Multi-hole porous structure improves chip removal and heat dissipation, reduces clogging and overheating during high-speed cutting, making this tile blade more durable and efficient for continuous dry or wet use. 【High Density Diamond Performance】Made with premium diamond raw materials, diamonds are tightly arranged with high hardness and wear resistance, delivering longer service life and more aggressive cutting compared to standard tile cutting disc options. 【Compatible with Multiple Machines】Designed for angle grinder diamond blade and circular saw use, compatible with 22.23mm and 15.875mm arbor sizes. Recommended speed 8000 RPM, max 13200 RPM, suitable for professional and DIY users cutting stone, tile and glass.