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

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...

This is a 7 blade Matrix body PDC bit , with Stinger cutters back row, used for very abrasive formation.

Steel body PDC bit is made by AISI 4145H heat treatment steel manufacture, it has lower cost compare with Matrix body PDC bit.