TrueTrac Simple Square GuidePlease use the drop down menu above to select the "Right Blade" or "Left Blade" variant Looking from the rear of the track saw, right bladed saws have the blade to the right, and left bladed saws have the blade to the left. This square is not designed to work with competitive systems Festool, Makita, DeWalt, Wen, Kreg, etc, as all of those tracks lack the dovetail connector grooves used for alignment. A simple bolt on rail attachment for the TrueTrac