Cutting tool, in particular a reaming tool for producing or post-machining of a plug bore, - comprising a clamping shank and a tool carrier with a cutting head and at least one cutter which is arranged at an axial cutting head end and which is at least partially designed as a reaming cutter, wherein said tool carrier comprises a chip-receiving space which is designed to receive material chips from a component to be machined, and which is bounded by a chip-removal surface adjoining the cutter and a chip-guiding surface oriented at an angle, more particularly at a right angle thereto, and which extends radially outwards, more particularly in a concave or angled manner, from the cutting head end in the direction of the clamping shank and opens out on a circumferential side of the tool carrier, - wherein the cutting head comprises a chip corridor adjoining the cutter, characterized that the chip corridor is designed to be completely enclosed on its circumferential side to receive material chips from a component to be machined, and which comprises a radially extending chip gap and at least a first, a second and a third corridor surface (46, 48, 54) extending from the cutting head end in an axial direction, wherein the first corridor surface comprises at least one partial section of the chip-removal surface, wherein the second corridor surface extends in an angled or curved manner in an axial direction to widen the chip corridor starting from the chip gap towards the chip-receiving space, and wherein the third corridor surface at least partially bounds and/or closes the chip corridor on a circumferential side of the cutting head, wherein the cutting head is designed as a separate component and is releasably or permanently attached to a main body of the tool carrier, and the chip corridor is formed within the cutting head. - comprising a clamping shank and a tool carrier with a cutting head and at least one cutter which is arranged at an axial cutting head end and which is at least partially designed as a reaming cutter, wherein said tool carrier comprises a chip-receiving space which is designed to receive material chips from a component to be machined, and which is bounded by a chip-removal surface adjoining the cutter and a chip-guiding surface oriented at an angle, more particularly at a right angle thereto, and which extends radially outwards, more particularly in a concave or angled manner, from the cutting head end in the direction of the clamping shank and opens out on a circumferential side of the tool carrier, - wherein the cutting head comprises a chip corridor adjoining the cutter, characterized that the chip corridor is designed to be completely enclosed on its circumferential side to receive material chips from a component to be machined, and which comprises a radially extending chip gap and at least a first, a second and a third corridor surface (46, 48, 54) extending from the cutting head end in an axial direction, wherein the first corridor surface comprises at least one partial section of the chip-removal surface, wherein the second corridor surface extends in an angled or curved manner in an axial direction to widen the chip corridor starting from the chip gap towards the chip-receiving space, and wherein the third corridor surface at least partially bounds and/or closes the chip corridor on a circumferential side of the cutting head, wherein the cutting head is designed as a separate component and is releasably or permanently attached to a main body of the tool carrier, and the chip corridor is formed within the cutting head.