Patent ID: 7510355

Claim:
An end-cut and longitudinal turning and groove cutting tool comprising: an end cutting edge; a first side cutting edge and a second side cutting edge, each being disposed transverse to and adjacent opposite ends of said end cutting edge; a first outer corner being disposed to connect said end cutting edge and said first side cutting edge; a second outer corner being disposed to connect said end cutting edge with said second side cutting edge; a chip-guiding rib structure having a substantially curved shape that opens toward said end cutting edge; said chip-guiding rib structure comprising a first projecting portion and a second projecting portion; said first projecting portion being disposed to project substantially toward said first outer corner; said second projecting portion being disposed to project substantially toward said second outer corner; an end chip space being disposed adjacent to said end cutting edge and between said first and second projecting portions; a first side chip space being disposed adjacent to said first side cutting edge and said first projecting portion; a second side chip space being disposed adjacent to said second side cutting edge and said second projecting portion; said chip-guiding rib structure comprising a top surface and flank surfaces extending from said top surface to said chip spaces; at least a portion of said flank surfaces comprising chip curling surfaces being disposed between said top surface of said chip-guiding rib and each of: said end chip space and said first and second side chip spaces; additionally, a first corner chip-breaking trough being disposed between said first outer corner and an end of said first projection of said chip-guiding rib structure; and additionally, a second corner chip-breaking trough being disposed between said second outer corner and an end of said second projection of said chip-guiding rib structure.