Abstract: The invention relates to a cutting tool, in particular for cutting, drilling and/or milling a workpiece, with a base body having a central axis, a front end and a rear end, wherein the cutting tool comprises at least one functional element for guiding and/or machining the workpiece, wherein the cutting tool comprises a channel system for supplying the at least one functional element with a cooling lubricant, wherein the channel system comprises a distributor element configured separately from the base body, and wherein the channel system comprises at least one distributor channel aligned transversely to the central axis.

Abstract: A tool for machining an outer circumferential surface of a workpiece, with an interface adapted for fastening the tool to a counter interface, and a base body which is cylindrical at least in sections. The base body has a circumferential wall encompassing a mounting space and is configured to be open at the frontal side in such a way that the workpiece can be at least partially accommodated in the mounting space. At least one cutting edge engaging in the mounting space is arranged on the base body for the machining of the outer circumferential surface of the workpiece. The circumferential wall has at least one chip passing recess which is arranged relative to the at least one cutting edge in such a way that chips removed by the at least one cutting edge during the machining of the workpiece can exit through the at least one chip passing recess from the mounting space into an outer surrounding area of the base body.