Mining 9 1/2" Spherical TCI Tricone Bits for Pilot Hole Drilling

=== Base Info ===

• Model NO.：9 1,2 Inch IADC637
• Color：Golden or as You Wish
• Jet Nozzle Counts：3
• Applicable Formation：Hard Rocks, Such as Limestone, Dolomite, Marble
• IADC Code：637
• Guage Protection：Multiple Guages
• API Reg Pin：6 5,8 Inch
• Bit Size：9 1,2 Inch or 241.3 mm
• Bit Weight：61.5 Kgs to 64 Kgs
• Trademark：superior
• Transport Package：Wooden,Plywood Case
• Specification：9 1,2 Inch IADC637
• Origin：China
• HS Code：8207191000

=== Description ===