38 is next drilled into rear surface of each excavation cavity 36 cut in the swimming pool wall 33 and the bottom surface of each excavation cavity 36 cut in the swimming pool floor 34 the locations of the rod apertures 38 may first be marked by using the assembled staple 5 with the cam members 7 inserted in the respective cam receiving apertures 3 as a template accordingly with the cam members 7 positioned in the respective cam receiving apertures 3 in such a manner that the cam tool apertures 9 located at the inside position and the offset aperture 8 located at the outside position of each cam member 7 as illustrated in fig1 the rod apertures 38 correspond to the locations of the respective offset apertures 8 alignment means not illustrated such as indentations or markings for example may be provided in the torque plate 2 and circular cam members 7 to ensure proper orientation of the staple 5 prior to marking the locations of the rod apertures 38 the rod apertures 38 may be formed using a 0 75 inch masonry bit for example a typical depth for each rod aperture 38 is at least 3 25 inches for a 3 0 inch reinforcing rod and at least 6 25 inches for a 6 0 inch reinforcing rod 12 after drilling debris is cleaned from the rod apertures 38 using compressed air a brush or the.