Earth-boring drill bits

Details Earth-boring drill bits Earth-boring drill bits

E - Fixed Constructions

21

B

255/69

E21B 10/00 (2006.01) E21B 10/56 (2006.01)

Patent

CA 1074779

EARTH-BORING DRILL BITS Abstract of the Disclosure The invention relates to the design of earth bore- hole drill bits employing shaped preform cutters containing hard abrasive materials such as diamonds.

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