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Tungsten Carbide Insert (TCI) or Insert bits

Basic Info

Model No.: 12 1/4" IADC517

Product Description

GREAT TCI Bit:

Tungsten Carbide Insert (TCI) or Insert bits generally have tungsten carbide inserts (teeth) that are pressed into the bit cones. The inserts have several shapes such as long-extension shapes, round shaped inserts, etc.


Teeth of the bits are different depending on the formation as follows:


Soft formation: Long-extension, chisel shape inserts


Hard formation: Short-extension, rounded inserts


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