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 9 7-8 5 wings matrix body PDC bit diamond drilling bit for underground water drilling - 副本 factory supply QL40 4 inch DTH hammer mining water well drilling equipments 6 3-4 inch 171mm borehole well water drilling button rock roller bits drilling machine soft formation drilling steel tooth milled teeth MT tricone rock roller cone bits 200mm IADC517 Tungsten Carbide Insert Tooth Drill Tricone Roller Bits Water Well Drilling Equipment 7 1-2 190mm water well drilling hard alloy protection step drag bit 445mm IADC137 high quality mill tooth tricone bits for medium formation oilfields drilling machine 12 1-4 rock drilling liquids water borehole drilling equipments enviromental drilling tools