GREAT's High-quality Bits Series I

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

Normally drag bits are 3 wings, but we can make 4 or 5 wings following your drawings or samples.

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...