Drill bits, cutting elements for drill bits, and drilling apparatuses including the same
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United States of America Patent
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Dec 2, 2014
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app pub date -
Dec 28, 2010
filing date -
Dec 28, 2010
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Abstract
A roof-bolt drill bit may have a forward end, a rearward end, and a rotational axis extending between the forward end and the rearward end. A cutting element for the roof-bolt drill bit may include a cutting face and a peripheral surface extending around an outer periphery of the cutting face. The cutting element may include at least one chamfer region and a peripherally extending chamfer extending from the at least one chamfer region along the outer periphery of the cutting element, a width of the at least one chamfer region being greater than a width of the peripherally extending chamfer.
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