an inner distal tip attached to said inner rotatable tubular body, said inner tip having {TAIL ~ a proximal end}, a distal end and a pair of longitudinally extending fingers extending from said distal end, a second cutting edge formed on the periphery of one of said fingers and a third cutting edge formed on the periphery of the other of said fingers, said second and third cutting edges being spaced from each other on opposite sides of an imaginary plane extending through the axis of {HEAD ~ said inner distal tip} 
an inner distal tip attached to said inner rotatable tubular body , said inner tip having { TAIL ~ a proximal end } , a distal end and a pair of longitudinally extending fingers extending from said distal end , a second cutting edge formed on the periphery of one of said fingers and a third cutting edge formed on the periphery of the other of said fingers , said second and third cutting edges being spaced from each other on opposite sides of an imaginary plane extending through the axis of { HEAD ~ said inner distal tip }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD