A cutting tool (1) for cutting bone, comprising: a body (2) having a proximal end (4) and a distal end (6) and at least one primary cutting surface (8) disposed at the distal end (6) wherein the at least one primary cutting surface (8) is shaped so that when, in use, a torque is applied to the proximal end (4) of the body (2), the at least one primary cutting surface (8) cuts a conical or frustoconical shaped cavity in the bone. A method for cutting bone using such a cutting tool (1).