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API oil drilling rock bits for drilling

With IADC code API oil drilling rock bits for drilling
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  • Xinhuafa
  • 84139100

API oil drilling rock bits for drilling


2168ed7b5f40770105d0828e698aebe


API oil rig drilling rock bits

60mm,65mm,76mm,93mm,95mm,98mm(3 7/8"),101.6mm,114mm,118mm,120mm,127mm(5")
130.1mm(5 1/8"),133.3mm(5 1/4"),139.7mm(5 1/2"),142.8mm(5 5/8"),149.2mm(5 7/8")
152.4mm(6"),155.5mm(6 1/8"),158.7mm(6 1/4"),161.9mm(6 3/8"),165.1mm(6 1/2")
190.5mm(7 1/2"),193.6mm(7 5/8"),200.0mm(7 7/8")
212.7mm(8 3/8"),215.9mm(8 1/2"),222.2mm8 3/4")
241.3(9 1/2"),244.4(9 5/8"),250.8(9 7/8")
269.8(10 5/8"),295.3(11 5/8")
311.1(12 1/4"),346.0 (13 5/8"),349.2(13 3/4")
374.6(14 3/4")
381(15"),393.7(15 1/2"),406.4(16")
444.5(17 1/2"),508(20"),558(22"),609.6(24")
660.4(26")


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