by which the face of the tool is inclined towards back

by which the face of the tool is inclined sideways

between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of tool

between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base

by which the face of the tool is inclined towards back

by which the face of the tool is inclined sideways

between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of tool

between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base

increases tool life

decreases tool life

produces chipping and decreases tool life

results in excessive stress concentration and greater heat generation

The larger side rake angle produces chipping

The smaller rake angle produces excessive wear and deformation in tool

The side cutting edge angle (less than 15 degree) increases tool life

The increase in nose radius decreases tool life.

side cutting edge angle

tool nose radius

Rake angle

end cutting edge angle