Quality Control of Great Rock Reamer I

Matrix body PDC bit is made by Tungsten carbide podwer , it is very high hardness material , mainly used for deep Oil&Gas well drilling.

RC PDC bit from GREAT are manufactured from AISI 4145H heat-treated steel.

PDC Hole Openers, are used to enlarge the pilot hole in Horizontal Directional Drilling(HDD).Widely used in construction, bridge, highway and railway construction.

Core barrel with roller bit is used in very strong rock formations(compressive strength > 100Mpa)