The invention relates to a boring tool (1) having a base body (2) and a tool holder (4) adjustable relative thereto, as well as a counterweight (6) coupled to the tool holder (4) in such a way that when the tool holder (4) moves in one direction the counterweight (6) moves substantially in the opposite direction. The tool holder (4) and the counterweight (6) are both at least in part arranged in a bore (8) of the base body of the tool. In order to provide a drilling tool of the above-mentioned type that is suitable, in particular, for high rotational speeds, economical to produce and in addition ensures a reliable and precise counterbalancing function, the invention proposes arranging a tool holder (4) and a counterweight (6) in the same bore in the base body of the tool.