Use of a cutting tool for drilling into solid material and for turning work, having a main tool body , wherein the main tool body has: a machining portion with a mount for an interchangeable cutting insert ; a tool shank , which is designed to be accommodated in a tool mount; and a supporting portion between the machining portion and the tool shank , wherein the cross section of the supporting portion is greater than the cross section of the tool shank , and wherein the supporting portion is designed to butt against an end surface of a tool mount when the cutting tool has been clamped in the tool mount , wherein the supporting portion has at least one aperture , preferably at least two apertures, for accommodating a cooling-lubricant nozzle of a tool mount , characterized in that the use takes place such that the cutting tool is accommodated, and clamped, in a tool mount with at least one cooling-lubricant nozzle so that, when the cutting tool is being clamped in the tool mount , the at least one cooling-lubricant nozzle ends up located in an aperture and the supporting portion does not come into contact with the at least one cooling-lubricant nozzle . a main tool body , wherein the main tool body has: a machining portion with a mount for an interchangeable cutting insert ; a tool shank , which is designed to be accommodated in a tool mount; and a supporting portion between the machining portion and the tool shank , wherein the cross section of the supporting portion is greater than the cross section of the tool shank , and wherein the supporting portion is designed to butt against an end surface of a tool mount when the cutting tool has been clamped in the tool mount , wherein the supporting portion has at least one aperture , preferably at least two apertures, for accommodating a cooling-lubricant nozzle of a tool mount , characterized in that the use takes place such that the cutting tool is accommodated, and clamped, in a tool mount with at least one cooling-lubricant nozzle so that, when the cutting tool is being clamped in the tool mount , the at least one cooling-lubricant nozzle ends up located in an aperture and the supporting portion does not come into contact with the at least one cooling-lubricant nozzle . a machining portion with a mount for an interchangeable cutting insert ; a tool shank , which is designed to be accommodated in a tool mount; and a supporting portion between the machining portion and the tool shank , wherein the cross section of the supporting portion is greater than the cross section of the tool shank , and wherein the supporting portion is designed to butt against an end surface of a tool mount when the cutting tool has been clamped in the tool mount , wherein the supporting portion has at least one aperture , preferably at least two apertures, for accommodating a cooling-lubricant nozzle of a tool mount , characterized in that the use takes place such that the cutting tool is accommodated, and clamped, in a tool mount with at least one cooling-lubricant nozzle so that, when the cutting tool is being clamped in the tool mount , the at least one cooling-lubricant nozzle ends up located in an aperture and the supporting portion does not come into contact with the at least one cooling-lubricant nozzle . <EOS>