PDC diamond core drill bits for hard rock
Basic Info
Model No.: 8 1/2"
Product Description
Discount 8 1/2" PDC diamond core drill bits for hard rock
PDC core bits utilise large cylindrical shaped cutters that consist of a layer of micron-sized synthetic diamond particles mounted onto a tungsten-carbide backing substrate (PDC = polycrystalline diamond compact).The technology was originally developed for oil drilling bits. PDC core bits have proved to be exceptionally cost effective for geotechnical drilling.PDC core bits have extremely fast penetration rates and a very long working life. The cutters are extremely tough and can core formations such as hard limestones with occasional bands of harder rock such as ironstone.The cutting action is extremely aggressive and a large volume of cuttings are produced requiring good volumes of flush to clear the hole and prevent blocking.Recommended for coring soft to medium hard formations, with water, air, mud or foam as the flushing medium. Ideal for air flush applications where a high rate of production is required.The size, number and layout of the cutters can be varied to suit the rock hardness, abrasivity and other details of the application.
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,tricone bits and some down hole drilling tools. 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.
Product Categories : PDC Bits > Diamond Core Bits