A multi-diameter drill bit (100, 500) 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 (140, 520) distal to the drill shank, the drill body comprising at least a first cylindrical portion (142, 522), a second cylindrical portion (144, 524), 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 (160, 540) distal to the first cylindrical portion of the drill body (140, 520), the drill tip defining a plurality of first land areas (162, 542) and a plurality of first cutting lips (164, 544) 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 (140, 520) and the drill tip (160, 540); wherein the second diameter of the second cylindrical portion (144, 524) is greater than the first diameter of the first cylindrical portion (142, 522) to define a plurality of faces of second lands (200, 527) at the interface between the first cylindrical portion and the second cylindrical portion; wherein each of the plurality of faces of second lands (200, 527) 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 (140, 520) distal to the drill shank, the drill body comprising at least a first cylindrical portion (142, 522), a second cylindrical portion (144, 524), 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 (160, 540) distal to the first cylindrical portion of the drill body (140, 520), the drill tip defining a plurality of first land areas (162, 542) and a plurality of first cutting lips (164, 544) 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 (140, 520) and the drill tip (160, 540); wherein the second diameter of the second cylindrical portion (144, 524) is greater than the first diameter of the first cylindrical portion (142, 522) to define a plurality of faces of second lands (200, 527) at the interface between the first cylindrical portion and the second cylindrical portion; wherein each of the plurality of faces of second lands (200, 527) 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.