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15 1/2"PDC bit...
6“ IADC537 TCI...
17 1/2" PDC bi...
15 1/2" IADC 6...
12 1/4
12" Hole opene...
229*80MM Tungs...
12 1/4"IADC637...
4 5/8"PDC bit
398mm Hole ope...
3 7/8"PDC bit ...
38" Hole opene...
13 5/8" TCI bi...
9 7/8 roller c...
900MM Hole ope...
11 5/8
10 5/8
9 7/8
8 1/2
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