High Air Pressure DTH Button Drill Bits

=== Base Info ===

• Model NO.：Atlas Copco,Mission
• Surface Treatment：Spray-Paint
• Manufacturing Process：CNC Machining
• Material：Alloy Steel
• Usage：Well Drilling, Mining
• Sizes：2 Inch to 30 Inch
• Face：Flat, Convex, Concave
• Quantity：Small Quantity Is Acceptable
• Trademark：ZZROCKKING
• Transport Package：Wooden Boxes
• Origin：China

=== Description ===