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 4 1-2 inch 114mm 5 wing HDD oilfields petroleum gas deep well rotary drilling diamond PDC bits 311mm chuanshi CS brand new rotary drill TCI tricone bits for sandstone and limestone drilling 127mm SD5 five inch mining equipment DTH hammer high standard China factory Mission60 152mm 6in oil-water-mine drilling rig parts DTH hammer borehole geological drilling PQ HQ exploration coring drill bit impregnated core bit 5 7-8 tungsten carbide well drilling stepped drag-blade drill bit API 8 3-4 IADC537 china factory roller bits deep underground water drilling bits kingdream metal sealed 12 1-4inch oil drilling rotary rock drill steel teeth tricone bits