For many years, Ammex is committed to provide with international advanced diamond products. At present, Ammex manufacturing factories in China have been able to make a perfect match of world-class production equipment, imported raw material, and local manufacturing resources. This enables Ammex to provide the customers with high-quality products at reasonable price. Surface set and impregnated diamond bits in all common DCDMA sizes, standard one and TW serials all available. They are manufactured to withstand difficult drilling conditions and provide long life. Meanwhile, non-standard bits are also available according the customers’ special requirement. Dando diamond core bits are produced by professional metallurgical technology, outstanding design and rich experiences on qualification supervision.