Patent ID: 8245797

Claim:
An earth-boring tool, comprising: a body having a face at a leading end thereof and a plurality of cutting elements disposed on a plurality of blades extending over the face; and a plurality of abrasive cutting structures comprising jagged surfaces disposed on the plurality of blades and positioned in association with at least some of the plurality of cutting elements, at least one abrasive cutting structure of the plurality of abrasive cutting structures rotationally behind at least one cutting element of the plurality of cutting elements on a common blade of the plurality of blades, the plurality of abrasive cutting structures comprising a composite material comprising a plurality of hard particles exhibiting a substantially rough surface in a matrix material, wherein a relative exposure of the plurality of abrasive cutting structures is sufficiently greater than a relative exposure of the at least some of the plurality of cutting elements to engage and at least partially penetrate into an elastomeric component while at least substantially inhibiting the plurality of cutting elements from engaging the elastomeric component.