Abstract: A downhole tool, or earth-boring bit, for use in disintegrating structures in a cased wellbore includes a tool body having a central axis about which the tool body rotates and an outermost gage surface on the tool body. At least one gage cutting element on the gage surface has a blunt outermost projection and a sharp cutting edge recessed from the blunt outermost projection, wherein, during rotation of the tool body, the blunt outermost surface contacts the cased wellbore and the sharp cutting edge does not. The blunt outermost projection may be on a leading element while the sharp cutting edge is on a separate, trailing element.