API 10 5/8 IADC217 Three Cone Rock Bit Steel Roller Tooth Drill Cone Bit for Well Drilling

Model Name :：HA217G

API 10" IADC321 Three Cone Bit Steel Tooth Tricone Bit for Well Drilling

Model Name :：10'' 321

API 6" IADC317 Milled Tooth Bit Tricone Bit Steel Tooth Bit for Well Drilling

Model Name :：HA317G

API 17 1/2'' IADC215 Steel Tooth Drill Bit Three-cone Drill Bit for Well Drilling

Model Name :：GA215G

API 8 1/2 inch IADC217 Three Cone Bit Tricone Bit for Water Well Drilling

Model Name :：HA217

API 3 7/8'' IADC537 Drilling Bit Tricone Roller Rock Bit for Blasthole

Model Name :：S537

API 12 1/4" 311.2mm IADC617 LILIN TCI Tricone Bit Roller Cone Bit for Hard Rock

Model Name :：LS617G

API 5 7/8" IADC517 TCI Tricone Drill Bit Rubber Sealed Journal Bearing Bit

Model Name :：S517