Abstract: A drill guide 10 comprising a V-block 20 including a first extension arm 22, a second extension arm 26, an edge 30 where the first extension arm 22 and the second extension arm 26 are joined 30 and form a V-shape 40, and an aperture 50 disposed in the edge 30 of the V-shape 40. A centerline 60 of the aperture 50 bisects a V angle 64 formed by the interior surfaces 23, 27 of the first and second extension arms 22, 26. This design allows the drill guide 10 to be placed over circular shaped material 90; a drill bit 92 to be received by the aperture 50; and the drill bit 92 to drill a hole may be drilled through the center of the circular shaped material 90.