2 In 1 Dowel Jig Kit - Wood Doweling Hole Drilling Guide
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". It needs no markings. Drill holes for edge to edge and edge to surface edge dowel joints.