Drill bit with improved removal of the drill core

A drill bit comprising:

• a drilling shaft having a cylinder with a longitudinal axis, wherein the cylinder has, in a plane perpendicular to the longitudinal axis, an outside diameter, an inside diameter and a shaft width, and
• a plurality of drilling segments spaced apart from one another in a circumferential direction and fastened by an underside to the drilling shaft, wherein the plurality of drilling segments include a first drilling segment with a first inner lateral surface having a first inner distance from the longitudinal axis perpendicular to the longitudinal axis, and a second drilling segment with a second inner lateral surface having a second inner distance from the longitudinal axis perpendicular to the longitudinal axis,
• the first inner lateral surface of the first drilling segment being formed as a portion of a first inner cone tapering in a direction of a first upper side opposite to the underside of the first drilling segment.