Question

143 : Tri-cone drill bit is a type of

a .cross bit
b .button bit
c .rotary roller bit
d .button drag bit​

Answer 1

Roller Cone Drilling Bits:

They are also called tri-cone bits. The cutting structures are mounted on three rolling cones and all these cones are attached to main bit body.

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Answer 2

Answer:

C. rotary roller bit

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