A multi-diameter drill bit for implant bed preparation, the multi-diameter drill bit extending longitudinally along an axis (X-X'), the multi-diameter drill bit comprising: a drill shank configured to be coupled with a driving tool used by an operator, the drill shank being proximal to an operating hand of the operator; a drill body distal to the drill shank, the drill body comprising at least a first cylindrical portion , a second cylindrical portion , and a third cylindrical portion the first cylindrical portion having a first diameter, the second cylindrical portion having a second diameter, the first cylindrical portion being distal to the second cylindrical portion, the third cylindrical portion proximal to the second cylindrical portion , and the third cylindrical portion having a third diameter; and a drill tip distal to the first cylindrical portion of the drill body , the drill tip defining a plurality of first land areas and a plurality of first cutting lips at least partially bordering the plurality of first land areas, respectively, wherein the plurality of first land areas form a point at a center on the longitudinal axis (X-X') ; wherein the drill shank is configured to transfer drilling torques and forces generated by the driving tool to the drill body and the drill tip ; wherein the second diameter of the second cylindrical portion is greater than the first diameter of the first cylindrical portion to define a plurality of faces of second lands at the interface between the first cylindrical portion and the second cylindrical portion; wherein each of the plurality of faces of second lands comprises a curved margin ; and wherein the third diameter is greater than the second diameter of the second cylindrical portion to define a plurality of faces of third lands at the interface between the second cylindrical portion and the third cylindrical portion, wherein each of the plurality of faces of third lands comprises a second curved margin. a drill shank configured to be coupled with a driving tool used by an operator, the drill shank being proximal to an operating hand of the operator; a drill body distal to the drill shank, the drill body comprising at least a first cylindrical portion , a second cylindrical portion , and a third cylindrical portion the first cylindrical portion having a first diameter, the second cylindrical portion having a second diameter, the first cylindrical portion being distal to the second cylindrical portion, the third cylindrical portion proximal to the second cylindrical portion , and the third cylindrical portion having a third diameter; and a drill tip distal to the first cylindrical portion of the drill body , the drill tip defining a plurality of first land areas and a plurality of first cutting lips at least partially bordering the plurality of first land areas, respectively, wherein the plurality of first land areas form a point at a center on the longitudinal axis (X-X') ; wherein the drill shank is configured to transfer drilling torques and forces generated by the driving tool to the drill body and the drill tip ; wherein the second diameter of the second cylindrical portion is greater than the first diameter of the first cylindrical portion to define a plurality of faces of second lands at the interface between the first cylindrical portion and the second cylindrical portion; wherein each of the plurality of faces of second lands comprises a curved margin ; and wherein the third diameter is greater than the second diameter of the second cylindrical portion to define a plurality of faces of third lands at the interface between the second cylindrical portion and the third cylindrical portion, wherein each of the plurality of faces of third lands comprises a second curved margin. <EOS>