Fixture Repeat Positioning Accuracy Repeat positioning accuracy indicates the consistency of position when a workpiece or electrode is unloaded and re-clamped on the fixture repeatedly. It is a core index for EROWA / 3R quick-change workholding systems. Our fixtures offer repeat positioning accuracy 0.002 mm. High repeatability eliminates repeated alignment work, reduces setup time and guarantees stable dimensional tolerance for mold & EDM machining.