High-quality Drill Bits from China

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

GREAT customized made Diamond core bits ,which including Matrix body and Steel body.

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

Overview Roller bitGREAT has customized manufacture several types of roller bit . It is including 90 ° U-shaped Roller Bit, 120 ° U-shaped Roller Bit and Starry Sky Roller Bit.The 90 ° U-shaped Rol...