an inner distal tip attached to said inner rotatable tubular body, said inner tip having 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 {HEAD ~ opposite sides} of {TAIL ~ an imaginary plane} extending through the axis of said inner distal tip 
an inner distal tip attached to said inner rotatable tubular body , said inner tip having 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 { HEAD ~ opposite sides } of { TAIL ~ an imaginary plane } extending through the axis of said inner distal tip
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