Abstract: Orthopedic surgical guide apparatus for guiding the coaxial drilling of two different-diameter bores required for the insertion of repair hardware used in the mending of a broken bone. The apparatus includes a first, planar guide element which a surgeon uses throughout a procedure, and a second, generally cylindrical guide element employed during the first part of a procedure. The first guide element includes a large-diameter guide bore sized to guide a surgical reamer. The second guide element includes a body portion sized to fit removably in such larger-diameter guide bore, and also include a central, small-diameter guide bore which is coaxial with the large-diameter bore with the two guide elements assembled. The small-diameter guide bore is sized to guide a surgical guide pin (drill).