A cutting tool body is disclosed, comprising a first member and a second member, both having a substantially cylindrical shape, and arranged such that a tool body central axis coincides with a central axis of each of the first and the second members. The first member has a tool characteristic of a first magnitude, and the second member has the tool characteristic of a second magnitude, different from the first magnitude. The cutting tool body comprises a transition member arranged between the first and second members and connected at a first end to the first member and at a second end to the second member. The tool characteristic in the transition member is of the first magnitude at the first end, and of the second magnitude at the second end. The transition member comprises a transition region between the first and the second ends in which the tool characteristic transforms from the first magnitude to the second magnitude.