T38 64mm 76mm Hard Rock Drilling Bits Thread Button Drill Bits

Kimdrill Roller Bits single cone drill bits button bits for rock core barrel

US $235 / pc

Min. Order: 100 pc

AQ BQ NQ HQ PQ all sizes of impregnated diamond core drill bits for hard rock

US $65 / pc

Min. Order: 1 pc

17 1/2"PDC bit diamond bits for hard rock drilling

9 7/8 inch IADC517 sealed bearing hard rocks drilling 9 7/8'' TCI tricone bits /

US $1400 / pc

Min. Order: 1 pc

14 3/4" rock tricone tci drill bit hard rock drilling bits

US $3000 / pc

Min. Order: 1 pc

Hard Rock PDC cone bit Used for drill underground core

US $150 / Piece

Min. Order: 1 Piece

iadc537 hard formation rock three cone roller tci tricone teeth bit

Kimdrill roller bit

US $1000 / pc

Min. Order: 10 pc

Atlas Copco Button Bits from China Biggest Supplier

ASTM4142 or 42CrMo hard rock drilling teeth