Diablo's diamond continuous rim masonry cut-off discs provide cleaner and precise cuts in granite, marble, porcelain and tile. These diamond rimmed discs deliver up to 60% smoother cuts versus standard diamond cut-off discs. The disc's industrial-grade diamonds with hardened disc body delivers lasting durability and maximizes cutting quality in hardened materials even in extreme applications. Superior quality diamond edge rim design for up 60% smoother cuts, resulting in chip-free cuts without burn marks Hardened disc body absorbs vibration and increases impact resistance to deliver superior quality cuts in hardened materials Utlra-thin constant contact continuous turbo rim design provides precise cuts at high rates of speed Compatible with 7/8?, 20mm and 5/8? arbors Includes two bushings: 20mm and 5/8? For dry and wet cutting Max RPM of 12,200