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Tricone Roller Bits 832
TCI bits maximize the use of both conical and chisel tungsten carbide inserts of large diameters and high projection. This cutting structure design, combined with maximum cone offset, results in high bit penetration rates. The deep intermesh of cutter rows prevents bit bailing in sticky formations
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DTH Bits CIR 90-110
CIR series DTH hammer, a kind of valve-equipped Low Air Pressure hammer with single piston, a plate valve and a central exhaust structure
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