3 Wings PDC Concave Drill Bit 3wings PDC Non Core Drill Drilling Bit for Water Well Drilling

=== Base Info ===

• Model NO.：L-00447
• Type：Magnetic Drill
• Usage：Well Drilling
• Certification：ISO9001
• Color：Gold or as Customer Need
• Material：Carbon Steel, Diamond
• Number of Blade：Half or Whole 3-Wing
• Use：Coal Mining or Water Well
• Surface Treatment：Polishing
• Trademark：zlong
• Transport Package：10,PCS
• Specification：75mm
• Origin：Xi′an
• HS Code：6101961467

=== Description ===