Downhole cutting tool having center beveled mill blade

摘要: Downhole cutting tools such as blade mills comprise a body having first end for connection with rotating component of drill string and rotation in unison the body. The comprises at least two blades, each blades comprising front sidewall surface, back an inner end, outer one beveled portion disposed along surface toward blades. At portions element thereon that is across center point face to provide away object wellbore occur end.