5/8 inch Steel Tooth Rock Roller Tricone Drill Bit

All tricone bits are according to ISO and API standards

Roller Bits China

Our tri-cone drill bits classification: water welltri-cone drill bit, geothermal well drill bit, trenchless directional triconedrill bit, natural gas drill bit, petroleum drill bit, including sliding sealedbearing series, rubber composite sealed bearing series, rolling bearing series,metal sealed series, non-sealed series, etc.