Profile: Changsha 3 Better Ultra-hard Materials Co.Ltd, is a manufacturer of diamond and CBN (cubic boron nitride) abrasives & tools. We supply synthetic diamond grits, diamond micron, CBN grits, CBN micron, PDC inserts, CVD diamond tools and diamond & CBN grinding wheels. We also offer diamond cutting blade with diamond segments, diamond & CBN grinding covers, diamond core bits, diamond flexible polishing pads, diamond compounds and other brazed & electroplated diamond tools. Our metal bond diamond is used for grinding glass with efficiency, good self-sharpening, high stock removal, good shape holding and long life. Our SMD680 diamond grit features complete crystal shape, perfect cubic octahedron, diaphaneity, high impact strength and thermal stability. It is suitable for high grade cutting, drilling and grinding tools.