Great PDC bits and Tricone Rock bits hole openers PDC reamers

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

Overview Starry Sky Roller BitGREAT has customized manufacture 90 ° U-shaped Roller Bit, 120 ° U-shaped Roller Bit and Starry Sky Roller Bit.The Roller bit mainly used for Rock reamer (Hole opener) ...

This type of Bi-center bit mainly used for medium to medium hard compressive and abrasive formation.

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