These attachments connect securely to the Festool domino cross stop system (498590). They project the spacing offset directly from the cross stop to the workpiece. The two sides are identically matched, so it is easy to achieve exact offsets on both left- and right-sided workpieces by setting the left and right cross stops to the same offset distance. No need to re-measure every piece and deal with pencil lines and hand-eye centering. Achieve exact reproducibility every single time.