AN3 90 Degree w/ AN 4 Straight along with AN3 Straight w/ AN4 90 Degree. AN3 - 0.505" up to 0.510". THESE WRENCHES ARE MADE OUT OF ALUMINUM SO THEY CAN BE OPENED UP WITH A FILE FOR EXACT FIT! If we would loosen up the tolerances (make wrenches bigger) our wrenches would be more prone to round off the corners of the fittings made to correct tolerance.
