A drill stopper set including a plurality of stoppers. Each of the plurality of stoppers includes a body. The body has a cylinder shape and includes a top, a bottom, a sidewall, and a bore running along a longitudinal axis of the body from a top opening defined at the top and to a bottom opening defined at the bottom. The bore is sized to receive a dental drill bit. Protrusions extend radially from opposing sides of the sidewall and run from the top towards the bottom of the body. A distance from a bottom edge of the protrusions and the bottom of the body vary between each of the plurality of stoppers.