Patent ID: 7020968

Claim:
A coring tool comprising: a hand held stirrer having an electrically powered turning socket; wherein the hand held stirrer comprises a flat base functioning to allow the hand held stirrer to stand on a flat surface; a manually interchangeable set of shafts, each shaft having a proximal end with a fitting for receipt by the turning socket; said shafts having a distal end with a two phase cutter; a first phase cutter of the two phase cutter comprising a skin piercing blade protruding beyond a second phase cutter; said second phase cutter comprising a blade having an elongate sharpened leading edge which has a width greater than a width of the first phase cutter; wherein the second phase cutter further comprises a first oval blade containing the elongate sharpened leading edge; wherein the second phase cutter further comprises a second oval blade, co-planar with the first oval blade, containing a second elongate sharpened leading edge; and wherein the first phase cutter further comprises a flat blade having a thin, rounded center tapering to a thicker first end and a thicker second end, and having the thin, rounded center protrude further distally than the first and second ends.