Rock Drilling Tools R28 Series Button Bits

• Certification：ISO 9001:2008
• Standard：ASTM
• Surface Treatment：Spray-Paint
• Manufacturing Process：Forging
• Material：Alloy Steel
• Body Material：42CrMoA

=== Base Info ===

• Model NO.：37mm to 89mm
• Hardness：HRC40-43
• Transport Package：Composite Packing Box
• Specification：37mm to 89mm
• Trademark：RUILISTER
• Origin：China
• HS Code：82071990
• Production Capacity：20000PCS,Month

=== Description ===
14×8-141.11221-51R28-14/8-42-23