Abstract: An improved centralizer is provided having a helical blade configuration with an improved geometry that reduces drag and friction forces as well as pressure build up as centralizers on strings are inserted into a borehole. An improved wrench adaptor is also presented that be customized to fit centralizers with varying designs by changing internal adapter rings and which is further configured to be easy to place over a centralizer and will lock in place relative to the centralizer blades when being rotated.