Compatibility: the diamond cut off wheels are compatible with the majority of rotary and air tools, electric grinder and : the diamond cut off discs are thin, completely coated with fine diamond particles, breathing holes for reducing heat and removing debris, great for making slots and slit Wide range of usage: This diamond cutting wheel are suitable for doing DIY, cutting, sawing, carving, sharpening and filing hard materials including all kinds of precious , jade, marble concrete, brick, porcelain, ceramics, epoxy and other hard woods, but not recommended for metal. Notice: For your , please must wear gloves and goggles and be care around spark when using mandrel diamond cutting tools. It may become very hot when cutting, so add some water to keep it cool., Weight: 0.10361726314 Pounds, Manufacturer: FTEYJEUIOTY