Bulroc Br1 Middle-Low Air Pressure Down The Hole DTH Borehole Drilling Rock Button Bit ...

• Certification：ISO 9001:2000
• Standard：GB, GOST
• Surface Treatment：Spray-Paint
• Manufacturing Process：Forging
• Material：Alloy Steel
• Color：on Request

=== Base Info ===

• Model NO.：BR1
• Condition：100% New
• Delivery：25-30days
• MOQ：1PCS
• After Sale Service：Yes
• OEM/ODM：Yes
• Transport Package：Carton
• Specification：57MM 64MM 70MM 76MM
• Trademark：SANSUNG
• Origin：China
• HS Code：82071300
• Production Capacity：30000 PCS,Year

=== Description ===
ModelDiameterNo.*button  dia. (mm)No.Weightmminchgauge buttonsfront buttonsflushing holekg

 

BR1

642 1/26*Φ103*Φ1022.6702 3/46*Φ124*Φ922.87636*Φ125*Φ1023.2

 

BR2

7636*Φ125*Φ1023.680-6*Φ135*Φ1024903 1/26*Φ136*Φ1024.5

 

BR3

85-6*Φ134*Φ1223.8903  9/166*Φ144*Φ1224953 3/46*Φ145*Φ1224.31003 15/168*Φ136*Φ1324.81054 1/88*Φ136*Φ1325.2