TCI Tricone Bit 8 1/2" 8 3/4" 216mm 222mm Roller Cone Drill Bit Mining Drilling Bit Set Video from China

PDC Tricone Bits

Oct 20, 2025

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Product Description: ^ Bearing polishing process after finish turning, improve bearing performance ^ Dynamic lubrication system ^ Professional & stable heat treatment, High quality control ^ Welding process, more wear...learn more

TCI Tricone Bit 8 1/2

TCI Tricone Bit 8 1/2" 8 3/4" 216mm 222mm Roller Cone Drill Bit Mining Drilling Bit Set

5000000pcs/day

negotiable

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Quzhou Sanrock Heavy Industry Machinery Co., Ltd.

Verified Supplier

7 Years

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