A precessional-motion drilling tool for industrial use, comprising: a shank (311, 411, 511, 611, 711, 811, 911, 1011) configured to be releasably attachable to a motor to rotate the drilling tool about an axis of rotation (305, 440, 540, 640, 740, 840, 940, 1040); and a drill body (312, 412, 512, 612, 712, 812, 912, 1012) extending from the shank, the drill body including a shank end where the drill body extends from the shank and a free end (320, 413, 513, 613, 713, 813, 913) at an end of the drill body that is opposite of the shank end, wherein the bone drill defines continuous helical flutes (208, 210, 320A, 320B, 420A, 420C, 520A, 520B, 520C, 620A, 620B, 620C, 720A, 720B, 720C, 820A 820B, 820C, 820D, 920A, 920B, 920C, 920D) that extend along the drill body as spirals, wherein the flutes are equidistant from each other, the drill body including a cutting portion between the shank end and the free end, the drill body having a center of mass (330a, 330b, 441, 541, 641, 741, 841, 941, 1041) at each transverse cross-section of the drill body, wherein the combination of multiple centers of mass of consecutive transverse cross-sections define a center of mass path of the drilling tool, wherein a center of mass of a transverse cross-section at the shank end is offset from the axis of rotation, characterised in that a center of mass of a transverse cross-section at the free end lies nearer to the axis of rotation than the center of mass of a transverse cross-section further at the shank end, and in that the distance of the center of mass from the axis of rotation decreases linearly from the shank end to the free end. a shank (311, 411, 511, 611, 711, 811, 911, 1011) configured to be releasably attachable to a motor to rotate the drilling tool about an axis of rotation (305, 440, 540, 640, 740, 840, 940, 1040); and a drill body (312, 412, 512, 612, 712, 812, 912, 1012) extending from the shank, the drill body including a shank end where the drill body extends from the shank and a free end (320, 413, 513, 613, 713, 813, 913) at an end of the drill body that is opposite of the shank end, wherein the bone drill defines continuous helical flutes (208, 210, 320A, 320B, 420A, 420C, 520A, 520B, 520C, 620A, 620B, 620C, 720A, 720B, 720C, 820A 820B, 820C, 820D, 920A, 920B, 920C, 920D) that extend along the drill body as spirals, wherein the flutes are equidistant from each other, the drill body including a cutting portion between the shank end and the free end, the drill body having a center of mass (330a, 330b, 441, 541, 641, 741, 841, 941, 1041) at each transverse cross-section of the drill body, wherein the combination of multiple centers of mass of consecutive transverse cross-sections define a center of mass path of the drilling tool, wherein a center of mass of a transverse cross-section at the shank end is offset from the axis of rotation, characterised in that a center of mass of a transverse cross-section at the free end lies nearer to the axis of rotation than the center of mass of a transverse cross-section further at the shank end, and in that the distance of the center of mass from the axis of rotation decreases linearly from the shank end to the free end.