Rotational drill bits and drilling apparatuses including the same
Abstract:
A subterranean support-bolt drill bit includes a bit body rotatable about a central axis and at least one cutting element mounted to the bit body. The at least one cutting element has a cutting face, a cutting edge adjacent the cutting face, and a back surface opposite the cutting face. A first recess is defined in the bit body and positioned adjacent the at least one cutting element. A first opening extends through a portion of the bit body, the first opening extending from the first recess. A coupling projection extends from the back surface of the at least one cutting element, the coupling projection being positioned within the first recess. A coupling attachment extends through the first opening and is attached to the coupling projection.
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