GREAT is a leading supplier of premium drilling products and services to the worldwide Oil and Gas Industry.We specialize in designing, manufacturing and marketing of various high quality diamond drill bits for various petroleum drilling activities. Products series classified by cutting elements covers PDC bits, TSP bits, Natural diamond bits, impregnated diamond bits. Product series classified by purpose covers diamond drill bits, coring bits, bi-center bits and reaming tools while drilling. Size of various bits and special tools covers from 3-1/2� to 26�, includes standard size and nonstandard size.   GREAT has large production basis � it is modern equipment ,CNC machines, and newest multiaxial machining center units and effective quality control means and each stage of manufacturing allowing producing wide range of products meeting all customers requirements and requests. Equipment itself, metal-cutting tools, technological software- Using Hyper Mill Technology, GREAT provides var