2 In 1 Doweling Jig Kit
Use this Kit to easily match face-to-edge or edge-to-edge holes for dowel joining. Will drill the following hole sizes: 1/4", 5/16", and 3/8" or 6, 8, and 10mm. Holds stock up to 1-1/4".
Its simple to use and needs no markings, just drill holes for edge to edge and edge to surface edge dowel joints.