water drilling coal mining BR1 BR2 BR3 air pressure DTH hammers drill pipes Size :3 inch Model:SBR3A Brand: Siruite Shank :SR3 Foot valve: Without Certificate: API 7-1 Pin Connection: 2 3/8" API reg Air Pressure: Low-Middle Pressure N/W,G/W : 25kg/ 29kg Dimenstion:950*80*80mm Application : ore /coal mining,water drilling,energy drilling Send Inquiry Live Chat(WA) Product Detail Tags: BR3 hammerdrill hammercoal mining hammer Share: PREVIOUS:DTH hammer 2 inch shank BR2 standard DTH bit for drilling NEXT:ultra high quality DOWN THE HOLE hammer tools with shank COP66 Related Products 149mm tungsten carbide tooth insert roller rock bits water well drill bits 4 wings chevron drag bits for gas well drilling geotech 66mm diamond PDC non core bits for abrasive rock formation drilling machinery parts oil energy well drill DTH hammer SD6 152mm 195 to 254mm hole drilling DTH hammer down the hole tools for drilling rigs API 8 3-4 IADC537 china factory roller bits deep underground water drilling bits Hybrid PDC drill bits tungsten carbide roller DIAMOND PDC BITS soft formation drilling steel tooth milled teeth MT tricone rock roller cone bits