Modular cutting tool body and method for manufacturing the same

A method for manufacturing a cutting tool body comprising the steps of:

• manufacturing a first member, a second member, and a transition member, wherein the step of manufacturing the transition member comprises an additive manufacturing method, and wherein the first member and the second member both have a substantially cylindrical shape, and wherein the first member has a tool characteristic of a first magnitude, and the second member has a tool characteristic of a second magnitude, which is different from the first magnitude, and wherein the tool characteristic in the transition member is of the first magnitude at a first end thereof, and of the second magnitude at a second end thereof, and wherein the transition member includes a transition region between the first and the second ends in which the tool characteristic transforms from the first magnitude to the second magnitude;
• connecting the first end of the transition member to the first member;
• and
• connecting the second end of the transition member to the second member to create a cutting tool body having a tool body central axis that coincides with a central axis of each of the first and the second members.