Jig is designed to center dowel holes on 1/2" thick stock
1/4" guide has holes spaced 3/4"-on-center
Made to last with a 3/16" acrylic faces and hardened steel drill guides Simple to use and requires no transfer marks from the face to the edge, or measure and mark with a tape measure
Simply set your two parts together, strike a line across the face of the joint and line up the jig