Patent ID: 7879055

Claim:
An apparatus, comprising: a first member including an inner wall defining a bore along a longitudinal central axis and a sharpened terminal end; a second member operable to be placed in said bore defined by said inner wall, said second member having opposing surfaces formed in an outer wall that define an open slot therebetween, said open slot having an entrance opening and an exit opening, one of said entrance and exit openings being coaxial with said longitudinal central axis, wherein said open slot extends along and through said outer wall from said entrance opening to said exit opening; a cutting area defined by at least a first portion of said first member including the sharpened terminal end or a first portion of said second member; at least one of said first member or said second member is operable to move relative to the other of said first member or said second member; wherein said first portion of said first member and said first portion of said second member are operable to form an interference at the cutting area upon moving at least one of said first member or said second member to cut a third member.