Once concrete forms are removed, cone keys are used to remove the cones from the concrete without damaging either the concrete or the cone. Two (2) types of cone key spanners are available: 1. The cone bolt spanner is designed to tighten and release the coil tie bolt in the form while the opposite side provides the hexagonal key to turn and remove the cone; 2. The cone bolt spanner combo removes three (3) types of cones – the coil tie spring cone, the standard Z bar cone and the larger Z bar cone.