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RC drilling refers to Dual Wall or Dual Tube Drilling. RC drilling applies two rods with inner and outer tubes.Air is blew down the annulus of the rod and enter into hammer and bit.Rock formation fragments crushed by bit are collected into the inter tube via air hole on the bit head. And then returned to the ground and enter into sampling system.Itshammers and bits are widely used in underground mining, quarries, hydraulic and Hydro-Power Engineering, water well drilling, Mineral exploration, anchoring
hole drilling, geothermal engineering, Subway excavation, another civil engineering.
5 inch Drill bit
Bit Dia(mm) | Bit Dia(inch) | Weight(kg) | Length | Working pressure | Hole range | |
120.5mm | 5" | 80.5kg | 1362mm | 1.5-3.5Mpa | 124-142 | |
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