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Shop Now. Add to Favorites. TCI tricone rock drill bit,tricone drill bit,rock drill bits oilfield equipment. US 4500. 12 YR. Add to Favorites. 6' IADC637 roller cone drill bit for trenchless and HDD drilling, Rotary Drilling Roller Cone Bits for Drilling Hard Rock. US 317.00-434.00. 12 YR.
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