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 API 7-1 standard 215mm tricone button insert tooth roller bit for water borehole drilling 4 3-4in drag drilling bits for mud soil soft rock drilling 14 3-4 inch 5 blades medium hard rock drill rotary PDC bits for petroleum and water drilling 149mm 6 wings steel body oil and underground water directional drilling PDC center drill bits CS 9 7-8 IADC537 tungsten carbide button TCI tricone drill bits for vertical water well drilling HQ diamond impregnated core bit for mineral exploration drilling 200mm IADC517 Tungsten Carbide Insert Tooth Drill Tricone Roller Bits Water Well Drilling Equipment API high quality 12 1-4 in 5 blades vertical well drilling petroluem and hole boring PDC rock bits