Cutting tip and cutting bit having increased strength and penetration capability

A cutting bit having a tool pick with a head portion and a shank, said head having a front surface, a side surface extending axially rearwardly from the front surface toward a shoulder, the cutting bit comprising a cutting tip mounted to the front surface of the head, the cutting tip including a conical body substantially rotationally symmetric about a center axis and having a profile in a longitudinal section through the center axis, the profile including a convex portion extending from a cutting end situated on the center axis, to an inflection point located at an axial and radial distance from the cutting end, towards a base portion of the body;

• and a concave portion extending from the inflection point to a point located at a greater radial and axial distance from the cutting end and axially closer to the base portion, wherein the profile of at least one of the concave portion and the convex portion includes a first linear portion defined by a portion of a first line, the first line extending from a first point at a first radial position, at an angle of about 45 degrees relative to the center axis, to a second point at a second radial position and axially spaced from the first point and a second linear portion defined by a portion of a second line, the second line extending from a third point forming an approximate middle point of the first line, to a fourth point at the second radial position and at an axial distance from the second point corresponding to about half a length of the first line, and a transition portion disposed between each two adjacent linear portions, each transition portion having a radius that provides a smooth transition between the adjacent linear portions.