Soft Rock Drilling Large Sized 15 Inch Steel Tooth Tricone Bits

=== Base Info ===

• Model NO.：15 Inch
• Color：Golden or as You Wish
• API Reg Pin：7 5,8"
• Bearing：Journal Bearing
• Seal Type：Rubber O-Ring
• Bit Size：15 Inch (381.0mm)
• Nozzels：Three Jet Nozzels
• IADC：124
• Trademark：superior
• Transport Package：Wooden Case
• Specification：sizes from 3 7,8" to 26
• Origin：China
• HS Code：8207191000

=== Description ===