A series of drills are provided for creating progressively larger and/or deeper holes in a dental implant procedure based upon a single drill guide. In one embodiment, the drills are monolithic or single-piece drills. In another embodiment, drills are held in drill extensions that provide control of depth independent of drill length. Using the techniques described herein, a kit of drills and/or extensions may be provided for independent control of hole depth and hole diameter during a progressive drilling procedure.
